Bought six years ago, still using 2-3 times a week
I have had my nova pro and color track glasses for six years as of '16.  I have used all the pre programmed sessions as well as making my own.  You can play music through the inputs and the color track glasses respond with a frequency specific light show, plus play a session with your own background music.  I have never used the supplied computer interface, but it is relatively simple to program by hand once you understand how to do it with only four buttons.  The rechargeable battery lasts for around eight hours of operation, even after six years.  That is alot considering an average session is around 30 minutes.  I have used my nova pro travelling quite alot,  it is about as durable and well made as electronics come.  The only modification I have made is a small foam spacer placed next to the battery to keep it from banging around in its box. An excellent tool for getting into light/sound therapy.
Rating: 5 stars