Poker- Anyone use Pokertracker 3 while playing online?

For all you poker players-

Im noticing these poker player tracking programs like poker tracker 3 that provide a HUD (heads up display) that shows other players stats (%of hands seeing flop, etc).  I was in vegas recently and players were saying they wouldnt go without it.

Is anyone using these? If so which is the best one? Thanks

I use HEM (Hold 'Em Manager) because they have the PLO Tracker add-on.....

It truly is awesome, makes multi-tabling decisions alot easier. You can also locate your "favorite" players, or it will help you find the right tables to sit down at.

I have also heard good things about PT3, but have never used it and I'm not sure if they have the PLO add-on.