I just bought a 07 Expert and like it so far. It's only been in the field a week, but worked great with all the tests I did with it here at the house. The flash seemed good and it was picking me up at over 40 ft in 90 degree heat in the middle of the day. Reaction time was great as well. I've heard of many problems with the06 models, but the 07 are supposed to be better.I plan on checking it in a couple weeks. Hopefully I'll be pleased.