This game is so amazing that it's hard to describe, you just have to play it.
The combat is cool and very satisfying, the combos are easy to learn, each character has a very distinct play style, the English voice acting is really good (for me in particular it became memorable, I even repeat the introductions of each character by myself), and the game is not crazy fast like the new versions. I could say good things about it all day long... This game is from an era of easy fun: you start, play for a while (or for hours), have fun, close, that's it. Totally uncompromising, but always fun.
If GOG can fix the aspect ratio by making it 16:9 it would be a blessing, since the PC version was always 4:3 and it was impossible to change. But if you can't fix it, that's okay, the game will still be amazing.