Alright. I'll pretty much try to tell you what I know about the game based off of playing the game for about 3-4 days straight (I've had it since Saturday. Don't ask.)
Combos in this game are a mix of SF4 and MVC3. Links are SLIGHTLY slower than SF4, but you still have to dial-a-combo to do target combos. The tekken characters seem to mesh REALLY well so far, having good high-low mixup; I kinda fear that they've been given too many options to dodge projectiles. A lot of people have command dashes to deal with it, although Sagat will tear up most of them as only one person (Lili) can use her command dash to get over low projectiles.
The system itself is surprisingly fun, given you liked SF4. It's a lot less friendly, and it shows once you notice you can't FADC yourself out of problems; if you make a mistake, don't be shocked if you get the shit punished out of you, regardless of if you tag cancel or not. Gems were rumored to be overpowered, but in all honesty, they don't make THAT big of a deal, which is a good thing. They can only be activated once per round, and they don't break the game.
As far as the game being glitchy: Only online is glitchy, and i think Jin has a bug. The problem right now with online is that the sound cuts off at random intervals (If you've played Street Fighter 3 : Third Strike Online Edition, it's very similar to that.)
Now, as far as what medellin says. How can the game be lazy if combos are super strict? Easy Combos usually suck and eat up a meter; one is a magic series (LMHH) and the other is an actual OKAY combo (that's putting it nicely, a lot of them are ass. Rufus gets his SF4 target combo into F+FP? that shit's weak. Balrog/Boxer's is fucking nice as fuck though).
Tekken characters vary widely, and bring a flavor to SF that they haven't seen. The only similarity that I've been seen is that Kazuya's links are the same as Ryu from Street fighter 4's Links. They've done something to every SF4 character to make them a bit different from their SF4 iterations. For example:
Akuma can link after lk tatsu
Ken can link after lp Shoryuken
Sagat can link s.lp after cr.mp
Cammy's CL.RH is now jump cancellable, allowing for CL.RH->TKCS to be a combo. Oh, and she has TKCS, but cannon strike is MUCH slower now.
One thing that is a bit surprising is that counterhit damage is back; if you get hit by a counterhit, expect a 25% damage boost for your opponent to lay you out with.
Tagging isn't safe; you can not tag out upon waking up. Your character is not invincible running off of the screen unless it's a projectile(sometimes). Your character is not invincible once you do a tag cancel to ANYTHING. The character that's tagged out CAN get command grabbed. AND die. AND it will end the match.
Throw range in the game has been GREATLY reduced in comparison to SF4. Unless you're a grappler, don't expect to get many throws. you have to be pretty much in their face to land one.
Overall, the game is a ton of fun. It's more fun than SF4, but it's less bullshit than MVC3.
