I just decided on Radion as well. Just ordered 2 XR30w Pros. After a whole lot of research these look to be the top of the line lights for what is current in the industry, and as a bonus they are much (MUCH!) more energy efficient than my current T5/MH setup.
I use an AI LED fixture over the nano, and the color on things in there is much better than the big 150G DT. I am a big believer in LED at this point.