I will have one over my 24" deep cube in about 10 days delivery willing, I will be doing a very thorough review of the lamp within my own capabilities of course.
I would also keep track of Mr saltwater tank TV as he expands his review on his tank where he has replaced MH on one side with a radion, if you have not seen the video I would look at it for sure as it will give you a lot to go on.
http://www.mrsaltwatertank.com/radion/