I like the game and really haven't had any issues with it until the latest patch which is causing some CTDs seemingly when I maximize the video memory use with the gfx options. Controls seem to be about the same as San Andreas PC, but I can't be entirely sure as it's been a while since I played SA. I don't have any complaints about the gfx, the gameplay is essentially the same, although it seems to be more story driven(?), not sure, only 30% through it. Multiplayer is a hoot.
Could it be better? Yes, but overall I'm having fun and glad I made the purchase
intel C2D, 2 gigs of RAM, 8800GTX 750Mb.