I have used one and for the money i really don't think they are worth it.
They are very, very fast and take a lot of pics but the downside is the pic quality is not that good and they take 10 AA batteries.
The flash is also horrible on them which is one of the main reasons they don't take good pics. They do take decent video though which can be pretty cool.
I would really like to see them use their speed technology in a white flash camera w/ a decent flash. But then again if they get a decent flash the trigger time won't be as fast.
If I were you i would just get a moultrie I40, build a homebrew, or buy a homebrew. These seem to be the best buys for the money to me.