The controls simply aren't sharp and responsive, which given it's speed is detrimental (deadzone is fucked, directional change mid-string and on land is horrible). The auto-target is worse than it ever has been in the series. Things are so damn random it's insane (hit Y as an enemy glows red, Ryu does special SoB attack, attack hits enemy, enemy still glowing red, doesn't SoB. why? 'cause fuck you. ditto OTs). The camera regularly bugs out and shows LITERALLY NOTHING. If an enemy can be SoB'd than that IS the approach you have to use on them. Boss fights are dumb and boring. Hitstun is basically non-existant since enemies can dodge out pretty much whenever they damn well please (don't get me started on Van Gelfs). Lifelines are handled stupidly (ninpo/free UTs or w/e).
That's just half of the bullshit I've been wading through in the very short time since I popped it in. It simply isn't fun.