My AP700 will be up and running in 3 weeks so I don't really have first hand knowledge other than having one and knowing nothing can top Kessil in the shimmer department. I owned a v1 Reefbreeders Photon 48 and it will grow anything you put under them. People swear by them, if I was in the market again for one I wouldn't hesitate to pull the trigger. V2 is updated everything, so you can't go wrong with that.