I quite liked the original that came in the bulky 5 CD format. With EE I can play the game the way it was meant to exist if technology was more advanced in 1998 and if the team had a few more hours to polish it.
Even though the improvements are small the game feels very different in my experience (for the better). Transparent UI makes it so much less intrusive. The ability to zoom makes it possible for me to run the game in a widescreen resolution without everything being too small. Plus, I quite like to reduce zoom outdoors and increase it in dungeons. I never knew how much I missed this before I had the chance to try it.
Because they implemented several convenience changes I am able to play this game without installing any convenience tweaks. For example, the standard 40 ammo stack was a bit of an annoyance for me, so I always installed tweaks just to increase stacking if nothing else. Because EE stacks up to 80 that's enough for me and I can just play the game as it is.
My biggest gripe with BG was always that I had to spend what seemed like forever just installing and configuring it (TuTu this, TuTu that, mod, tweak, blah blah). Finally I can just install it, increase FPS in options to 40 (to speed up walking) and PLAY. I'm sure that fundamentalists will argue that EE is the devil because you can get the same or better experience by taking BG1 and run it using BG2's engine with widescreen mods etc. But in my opinion the result is not as polished as EE and there is just SO much painful hassle that way.
I approve of this release!
P.S. (spoilers below!)
I am also very happy that they included new NPC's - even though the original had a lot of them to begin with. I am one of those individuals who think that the 'canon' party sucks (i.e. that they are incredibly annoying). I love Imoen, but I cannot stand Minsc (calling him a degenerate idiot would be a compliment), Jaheira (Look! It's Miss Personality herself!) or Khalid (he's just a dog without testicles that Jaheira keeps on a leash). Dynaheir I could care less about. The problem is that these people come in pairs, so there go 4 of your 5 slots. Having three new characters in EE makes it easier to fill them with people that do not annoy you.