Okay, so graphics seem unchanged. Controls seem better as in it catches my intentions more of the time! Which is really nice

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In my first session I just beat the arcade as Ken on normal in 11:37 ... which was slower than I was expecting but I didn't count on the new EXTRA STAGE vs Akuma!
Edit: okay that spoiler tag thing was lamer than I expected. I beat Akuma but don't seem to have unlocked him to play - maybe by beating him with all characters? The achievement is only to beat him in the arcade. Speaking of which, far fewer achievements than in the first version, ironically given how much easier it is to play vs other people now!!
Also had auto accept challenge turned on and managed to win my first online game yay. It stuttered a bit but I think I was still downloading something else in the background, and overall I was impressed at the quality of the experience ... and of course with winning!
Now I've just opened up SFIV the old app and unlocked the IAP for free, the SFII background is cool but the music is decidedly dated

. I guess I'd never really heard it having only watched the game in arcades where it was pretty damn quiet or turned off. Very nice touch for owning both, I'm guessing they picked the fact through GC. New Chun-Li outfit is of a style quite different from the rest of the game! And interesting to note that they don't then magically unlock in Volt, maybe they will add those outfits back in, again as IAP, later? Wouldn't be so bad as I'd say EVERYONE will be getting this at bargain rates!
Graphics would be my pick for future update focus!
Edit: All in all looks like a lot of gameplay albeit a lot we've done before. And my thumbs were just recovering from my last bunch of play on the old version!