Jason Mraz is one of my favorite artist. Though I have yet to purchase his newest disc (which I prolly will never because of the less then perfect reviews that it got), his first cd was really good, one of my favorites! Glad to hear you had a good time!
I saw him two years ago, right before he had released his live CD. He was amazing, no doubt. I want to see him again though because he's released some great stuff since then. I bet "Please Don't Tell Her" would be great live.