I've been using PT for about 3 months now and here is my opinion on it. Sure, it can help if you don't feel like paying attention too closely if you are multi tabling or talking on the phone or something. But to be honest, many players have very similar standard stats and to get a read on them, you need to pay attention (are they check raising often, do they check the flop, bet the turn with strong hands, etc, the stats don't tell you any of this). What I find it most useful for is after a session, I spend 20 minutes reviewing hands and looking at my stats and trying to see where I could play a hand better.