I've had mine for about two-ish weeks now? I love it so far. The corals have all responded really well, and the acclimation mode it has has done a great job of keeping them from being overwhelmed transitioning from the stock light that comes with the Evo. I've definitely seen an improvement in coloration and growth from pretty much every coral in the tank. The lunar mode is really neat too. Syncs with the moon cycle and gives the tank a small amount of extra deep blue glow for a few extra hours at night when the moon is out.
Only qualm I have with it is that the light does spill over the sides of the tank on the shorter sides since it's so narrow. So my couch glows quite a bit at night. Haha. I'm thinking about modifying one of my old photography soft boxes to use as a kind of hood to corral that overflow a bit.
If you get one, a few posts up I posted a link to a document that David Saxby put together that has a good basic schedule with light intensities and duration for the AI Prime that was the best looking of all of the different settings that I found online IMO. That was also another issue with the prime. It's highly customizable, and AI provides pretty much zero information to get you started, so I had to do a lot of research the first day to find myself a lighting schedule I liked and figure out how to program it to my liking time of day wise. Pretty intuitive system, but they should provide you with some basic presets to try out I think.
