I like the heads-up approach of this game and it has improved (IMHO) my heads up play style. I havent played all 12 personalities yet, but the ones I have played are all VERY different from eachother.
I played the free version for a long time and the paid game has more options that make it worth the investment.
The previous reviewer who mentioned the "no chips" problem with sharing the iPod to play with a friend didnt notice the TWO options. One with chips and one without. Although I admit that I too would never choose the latter.
For a challenging, fast solo poker game, this ones my favorite.
Kivy about Heads Up: Hold'em (1-on-1 Poker)