The original felt slow sometimes and finding named locations in the city was annoying. It was also because I used a dragon disciple in EE, spontaneous casting is more fun.

I only know what the store page says to me:
" System requirements
Minimum system requirements:
System:
Windows 7, 8, or 10 (64 bit)"

So it's 64 bit only.

But you are actualy very passionate, you defintely convinced me to take a look at least on NWN/2. Thanks!

Shaman isa disgustingly lazy attempt, like the Faces of Good And Evil pack. The character is a lazy mishmash of you described, and doesn't even get a stronghold, not even a broken one like druids!
That's, and their "ban every customer" policy of Beamdog that didn't even make me consider buying any of their crap until now.

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I skipped this discount, but I just might to make a new character, which I never played: the shapeshifter. It'll have minimal stats (where fits), and will be transformed 24/7, or something! Werewolf -> Greater Werewolf -> Slayer! (let's hope druids can use scrolls, and prot. from magic energy works as the rumour says it does).

If you'll give a chance to NWN2, you could play Baldur's Gate with NWN2 engine. Check this mod!

I more or less concur with Engerek01's analysis. The EE's are mainly for a newer audience; people who haven't played the original series before, or who want to avoid the hassle of getting older games to run on newer machines without having to muck around with various mods and wrappers and what-not. I found the new EE content in the games entertaining enough, but if they weren't enough to sell you on the cost already then I doubt you'd find them meaty enough to be satisfactory. The EE's DO have quite a few QoL updates (and between that and the extra content was what convinced me to buy them), but one man's QoL improvements is another purist's nightmare, so they may not be to your liking if you're very used to the original games.

I found the Siege of Dragonspear expansion to be quite a fun adventure and an interesting story, if perhaps fairly railroad-y. In all honesty though, if you never played it, it wouldn't affect your enjoyment of BG2 one bit, so you can safely skip it.

In short, if you're new to the BG series and have never experienced the magic of the games before, the EE's are a excellent choice for starting off. If you've been running the classics for years though, then the trip down nostalgia lane likely is not going to be big enough to warrant the additional purchase.

I still have my original discs, but as a casual gamer, I really appreciate features like compatibility with modern machines and screen resolutions without having to use unofficial mods, as well as quickloot, being able to zoom in and out, etc.

I have no regrets of getting it at a sale for 5 bucks or something like that. And if i didn't have the original, then paying full price would also be okay. It's a classic and most people just want things to work "out of the box" without messing around with them.