A buddy of mine just wrote up a review for SF6. I haven't had a chance to play it yet. Read or don't.
"So we're at 2 1/2 weeks of SF6 + like half a year of people grinding the cracked beta.
My Full review
This game is really good. Doesn't feel like there's the input lag 5 had. Its still there, but doesn't feel as bad.
I may just be biased since a lot of people have picked up Blanka. Blanka is easy and probably the best character in the game, Can do everything, and be anywhere on screen pretty easily with the knowledge people have in the game so far.
Newcomers don't feel misplaced. I felt a lot of that with the SF5 roster, and even some in SF4
What they really took from SF3, in my opinion, is good universal mechanics. I think the drive system works very hard to compensate what some characters lack, and doesnt seem to bring certain characters up a lot more than others.
-Drive Rush is really good. I like sliding sweeps, it feels really good to see a fireball full screen and be able to knock someone down for it. It feels cheap and busted in a good way.
-Drive impact has been pretty controversial with new players, but its a focus attack, buffed in some ways, nerfed in others. Its a lot easier to deal with than Focus was in the beginning for me. More of a cue that its happening, and cant be delayed or cancelled, so regular set ups you make against them should work almost all the time. Corner unblockable resets are nuts.
-Over Drive is really cool. I like EX moves being separate from your super meter. And I like that too much use of any Drive mechanic leads to burn out
-Burn Out is cool, I really like the mechanic. You can chip people in burnout, your moves have additional frame advantage against people with burn out, and it forces you to care about your meter. Very interesting punishment.
One of the things I don't like, but its also kind of cool actually, is Dragon punches being throwable, technically. You can kind of go around this inputting up before the move comes out. I don't know if this works well for all moves, but its worked for me when I play. Haven't been throw looped since finding this out. I figured this out using Guile/Blanka, and then saw it discussed on videos online.
I still have been exploring avatar battles, but World Tour is more fun than I thought it'd be. Pretty decent single player content for a fighting game. I haven't even explored the other single player content because of it to be honest. I don't know if there's a survival mode, or if its been improved in any way.
I've also heard a lot about how hard this game is, from scrubs and pros. And they're right. Some things are difficult execution-wise, but execution has been brought down across the board. A lot of stuff is Easy to do, in general (not DBFZ easy), BUT the fact that you have to watch out for a lot of scenarios now, full screen punishes for stuff that would have been 100% safe in older games, the fact you can do more about scenarios that were bad for your character in previous games, and I think drive rush combos can be hard to do for some people as well. There's a lot of things that are difficult about the game when you play other people.
But so far the game is holding up. I'll probably change my opinion after they nerf Blanka to the ground and his H ball is more easily punishable on block"