After browsing discussion about Steam version 1.006A

and GOG version differences as explained HERE

If this sounds normal and since this is the first time I will play Divine divinity than it's a sincere request to advice me which version is better?

Some say Steam is just like GOG with only difference being soundtracks are working fully on Steam except on GOG while some also speak that Steam is an enhanced edition retaining all patch fixes till date in addition to newer tweaks by Larian Studios.

So, which one should should I buy?

1) Steam is a bad DRM-based system. GoG is its polar opposite. Buying on steam supports steam and its steam ways. Buying on GoG supports GoG and its GoG ways.

2) I'm playing the GoG version, it's 100% delight, I don't think another could be functionning better, as it is already perfect.

3) I didn't understand. Steam offers the soundtracks too? If not, the question is solved. Divine Divinity has some of the most magnificent game musics I've ever heard.

So, that's for my opinion, and the nature of my bias.

From a post in the Larian forum: Telika;
Some people with the GOG version have had issue with the music not changing when switching regions. Ie, IIRC someone in the Larian forum mentioned that when they entered either tavern in the game, the music from where they came from would continue, rather than switch to the music for that tavern.

Some people at Steam are getting the same issue with their version it seems.

That's a shame. Truth be told, the missing music is the main reason I don't play my digital version of DD, regardless of any story bugs.

I have not had a problem yet with music, but then I've been going to specific places (sometimes hex teleporting to skip over areas that would take too long), rather than playing the game and exploring normally.

I am thinking about buying this game on GOG however Im wondering what would it have that other rpgs dont have?

Well, for one, you play as the chosen one, starting off weak and growing strong, foretold in prophecy and destined to either save or destroy the world. Other RPGs don't... um... never mind.

The humour is probably the most unique feature compared to other RPGs. There are some very funny dialogs and literal laugh out loud moments. It combines well with occasional easter egg reference to other games, books, etc, to contribute to the game's atmosphere.

The music is very good. That isn't unique, but I haven't burnt a lot of game music to CD.

World interaction is quite well done, though other games have had more interaction or more elaborate methods. The world interaction in DD and sense of exploration still set a pretty high bar, though. I remember trying a demo for a different game after playing DD, and was quite disappointed that almost all the chests were painted background, and could not be interacted with. After entering a house and walking upstairs, I saw a pentagram on the floor with candles at the points. Of course I immediately tried to light the candles to see if anything would happen, but they were just background.. so I quit and uninstalled the demo.