Love them too, buy yeah, there are some issues with them.
Too long and too strong period, for start. It's great to have multiple presets, but that's poorly documented (for example, i'd like to have some table or chart for channels and timings in all of presets, but in manual is only for vivid color), also, there's no way to customize presets, so if one want to run reduce algae preset, it is doomed to 16 hour cycle, and timings, and i really dont want for my lights to turn at 4am, of course, u can shift time, but, pointless, that have no effect on cycle period.
Limit intensity is also uselles, like said, this is just to top channel intensity, and not to distribute channel settings.
Also, there's no way to save custom preset, so one can experiment and see what work best for his tank.
I love to have sunrise - low blue light for hour or two, ramps slowly and then from 12-5pm full power, then ramps down, and after 10pm to lets say 12am again low 1% blue light, then darkness.
Lunar cycle is good feature, but, way to strong light at some days, again, no customization possible, only set custom moonlight to chosen %, and most iritating - again time limit when moonlight can start and when end.
I run similar custom seting, from 8:30am to 10am 1% channel 2, then from 10 to 12am slow ramp up, from 12-5pm full power, then ramp down to 0% at 1 and 4 channel in 8pm, channel 3 goes of at 10pm, and channel 2 ramps down from 15% at 10pm to 0% at 11:50pm.....
Limited white to 35%, other chanels at 100%, probably i will lower all chanels a bit, except white, its too blue if i go below 35% white.
Great lights, but limited controller i guess, of course in that price range i dont expect to customize everything, but more user friendly and customizable controller will make this product even better. Basicaly, more advanced stuff, even if it cost little more.
Buy yeah, i will definitly buy another unit, maybe even two....