I made a review of the game before 1.3 and it was too buggy at the time to give a good score. I intended to update my review after the game was fixed, but apparently it is not an option.
There are many similar reviews which have the bugs as the main negative point.
Is there a way to update or remove the reviews?
I have not seen one, but would contacting customer support help?
I am afraid that a great game will be overlooked by many due to a rushed launch.

Thanks for the reply!
I also signed the feature wish from the forums for adding the feature to edit reviews to GOG.
I will wait for some time with contacting them. Still having some issues, but it is much better than before 1.3.
I think the game will be great in a month or so.

There are good chances.
The guys at Warhorse really seem to want to polish their game.
It is always good to see developers actively work to fix their game after release like that.

The game just uninstalled itself the second time now. Definetly hope that they will fix it.
EDIT: I think it is a GOG cloud save related issue, but it seems to only affect this game. GOG informs that the game is not installed and when I go to the file the exe has .download ending attached to it. The only thing that fixes the issue is restarting my PC and it redownloads the exe and syncs cloud saves. If I try verifying or reinstalling GOG gives a disk access error.

I usually only review games I actual finish. This way I do not just review out of anger or something.

Nearly all the 'technical' reviews are useless anyway, because they relate to the person's hardware.
Or reviews about the price policy at the time of release -.-

Well, since your review was strictly concerning 1.3, it is accurate insofar as you felt--about 1.3. I would suggest that if you cannot change your 1.3 review, then simply write another review about the later version you like much better, and reference that earlier review.

Well done! So, you think subjective opinions are more important than objective facts? Bugs are not hardware related unless you mean only performance related issues. A bugged quest will not start working if you change your GPU. The gameplay related issues are usually caused by other in game events being triggered in a specific order or not being triggered at all. Even performance related issues are usually quite universal. If a game has 90% of the reviews saying that the game has bad performance then you should expect that you most likely will face similar issues if you buy the game.

Story on the other hand is a very subjective. There are people who don't like Game of Thrones, Lord of the Rings or The Witcher 3. Even though I like all of them very much I cannot say that these people are wrong. They have their own opinion and value other elements in the story or narrative than I do and I respect that. Thus, basing reviews on story alone is more wrong than sharing issues you had with actual gameplay.

Also, your argument of finishing a game does not take in to account that did the player actually experience the game. I have 125 hours on TW3 and I am not even close to finishing the main quest. I prioritize side quests and do not fast travel. I prefer to enjoy the gameworld as much as possible and finish the main story as I go along. Others fast travel from one marker to another as fast as they can and mash their keyboard during cutscenes. They will finish the game in less than half the time I do, but still have not experienced it when they say they are done with it. Each to their own playstyle and if you prefer to play like this it is your choice. My point with this is that despite checking all the boxes in a checklist a person is not automatically more knowledgeable than another. Others read every text about the game they get their hands on and listen to every second of exposition and lore while others complete objectives.

Achieving 100% completion of a story in a game with gameplay (not a walking simulator) is in no way necessary to form an opinion about whether you personally like the story or not.
Actually, being able to finish the quests and not have NPC's break during their scripted interaction on the other hand is necessary in order to play the game. Thus, actual gameplay related issues are more important than achieving total completion before writing a review.

I didn't know this would upset you. With finishing a game I by no means dictate a playstyle. I mean 3 hours played and then post the game is bad!

Technical problems are most of the time hardware related.

Anyway, my system works for me.
If I cannot play much of a game because it is boring or bad, I don't finish and no review. If I enjoy and finish a game despite bugs, I give a review.

I never need to ask if I can change it afterwards and there are enough users giving bad reviews.

There is never too many bad or good reviews. Reviews should always be objective and based on the customers own experience. I don't write bad or good reviews I just share my experience with the product on the product page with other consumers.

Technical issues in general are not mostly hardware related. If you have a bugged quest and swap out RAM sticks, GPU, CPU, PSU etc. the issue will persist. The only way swapping hardware in this case would help would be swapping all storage and making a fresh install. This would most likely not help either unless you restart the game. If you would like more information about the issues you can ask the developers about the "over 300 other fixes in various quests" -they listed in their patchnotes. No hardware changes to any consumer computer would have fixed these issues.

I am not trying to badmouth the game. I like it a lot, but unfortunately it has issues at the moment. The reality is that consumers buy products on a daily basis and refraining from reviewing a product now, because you wait till its finished is withholding essential information that influences customers purchasing decision. Allowing to change reviews like on Steam would allow consumers to give their opinions of the current state and change it if the game changes. This would incentivize the developers to keep enhancing their product as this would generate more positive reviews and many negatives would change to positives, this would then positively influence their sales.

I did have unsolvable quests in Divinity Original Sin at release and did post in the forums but not in a review about it. The quests were so broken at release, I didn't buy Divinity Original Sin 2 and I had to restart my character so often, I got bored and never finished the game.

Now everyone praises the game...

I didn't realize edits weren't already a standard feature.
I'll go dig up that wishlist now and sign it as well.

EDIT: Link for anyone else who wants to sign it. There's more than one wish for this going.
https://www.gog.com/wishlist/site/edit_reviews
https://www.gog.com/wishlist/site/allow_us_to_edit_our_reviews
https://www.gog.com/wishlist/site/add_ability_to_edit_review Have you tried turning cloud saves off, or auto update off to see if either of those isolate the issue?
It sounds like real thorny problem to deal with, it'd be great to get GOG support on the problem and pointed in the right direction.

Haven't bothered trying to figure out the issue. I've only experienced with KCD and just twice. I have have auto updates off, but not cloud saves. It does not bother me much since it is very rare and I use an SSD so rebooting is very quick.
Didn't find any threads with a similar issue either so I assume that it might be an isolated case with the cloud save system and this game.

That's what it's sounding like. I read one othe thread about similar issues also in this games sub-forum.
Currently some interation with the cloud save system seems to be the most likely guess.