I'm using a couple of Reefkeepers (the original ones) and I think they are a terrific product. The only issue that I have is that they tend to lose time when there are big thunderstorms (power surges) so I always have to check that the time is correct and reset the time occasionally. Maybe they have fixed it in the II.

Mine controls some of my lights, all pumps, tunzes on wave cycle, and my heater.