Well.... I was thinking of getting it. Then I played the tablet free to play version on my Nvidia K1 and thought it was a bit tedious. As far as I can see, and maybe the console\PC version is different, is it's more like a strategy game than fighting. The only movements are tap or swipe or block. Blocking is really delayed so seems pointless. Direction of swipe makes no difference. So ends up being tap, tap, swipe - tap, tap, swipe - special move. Yawn.
I loved Soul Caliber series and missed the movement and variety in I2. That said, it seems to have deep complexity. Different character types, power upgrades, mission etc. I think that's where it gets it's good reviews as you no doubt need to get a good team synergy to do the higher difficulties.
Happy to be corrected on this, and would be interested to see if console is different to tablet free-to-play.