Even though the game has still a lot of problems to solve right now, and even though I still quite suck at it, the actual gameplay and mechanics are hard to fault and difficult not to enjoy.
I realized yesterday that I was getting destroyed by a coworker because I was still not playing this game how I should, so when coming back home I studied the frame data and came up with some frame traps for the situations where my friend would always hit a button to stop my clumsy offense, and I worked on some hit confirm situations.
As an intermediate player this is something I've never done on SF4, because my crappy execution always made it so I would spend most of my time in training mode trying to nail those insanely hard combos so as to boost my damage output. Now that the bnbs of most of the cast don't require a life of dedication to reliably use, I can concentrate on the next layer of the game and what a joy it is!
Also, it's really nice having at last an extensive training mode in a Street Fighter game: those wake up and guard recovery record options are boss! Identifying a possible frame trap from the frame data and then being able to easily test it out with different reactions from the opponent helps not-so-good players like me A LOT.