For the money, it's great stuff. Especially if you get the 10% off + free shipping deal. The thing that's kinda sucky is that you have to use iPad / iPhone -- it would be incredible if I could interface with a computer. My phone and ipad struggle to keep up, and if I want to connect to a tv I can't charge the device at the same time. It would be nice to have a computer for the graphics / speed improvement and so I could charge whilst playing on a tv.
In terms of data / dispersion, ease to setup, etc. Incredible. Really good stuff. The. slow motion impact camera really helps build intuition about your missed shots and good shots alike. It's a great tool for improving.