Yeah, the 1P AI pretty much annihilates me 
Plays quite well online though. Too bad I can't pull off a decent hadoken with the Xbox pad, even with the sandpaper hack
Doesn't matter what controller you use. The timings are
really hardcore to the point of being ridiculous IMO.
I'm playing the PS3 version with a Saturn pad and an Ascii pad and my "pull of the right move"% is still only about 75%. Playing online, at least on the PS3, shows this is a global issue. Most of the matches are players trying to do moves and messing them up so they do standing or jumping attacks on accident or stick to charge moves that are hard to mess up. You can pretty much win a match just by waiting for the other player to mess up a move and then go in for the opening.
Compared to 3rd Strike or MvC2 or Arcana Heart or Guilty Gear or any other PS2/PS3 fighter, the timing is faaaaar stricting. I popped in 3rd strike to be sure and I was pulling off moves pretty near 100% on a saturn pad.
Maybe the original SSF2's timing was like that, I don't remember. But if it wasn't I think the developers were just too hardcore for their own good. The remixed move lists make moves easier, but if the timing is so strict you still can't pull them off all the time it's kinda pointless. Hell, Zangiefs new HCB,F+P SPD is harder to pull off than the original 360 because going from HCB->F without accidently jumping is DIFFICULT. If you play Zangief and have a throw opening you might as well just go for the new HCB + K motion for his other input throw because at least you'll pull it off pretty consistently.
/rant off
