I've been using PT4 and i was thinking never gonna change it. When Jivaro come i was too lazy to try it and change my PT4, but once i saw what Jivaro is all about i swapped immediately. So Jivaro is #1 poker tracker for me at the moment. Really good, easy to learn it and easy to customize. I'm using Jivaro since i installed it, never went back to PT4.
I'm going to test out Jivaro since everyone is having great experiences with it. I noticed on their site that it is for America's Cardroom Beta and for Poker Stars, wondering what the Beta part is about but I'll find out.