I've been torn about the same thing, and have finally made my decision on that issue.....I've decided to go with the Neptune controller......IMO just a nicer unit than the others......The ReefKeeper was my 2nd choice, but they lack some of the features I wanted and it appears that they have a problem with the systems resetting here lately that no one has been able to resolve......I don't know if that problem is with either the ReefKeeper 1 or the new ReefKeeper2, but either way it's screwy and it's not isolated to just 1 or 2 people. There is a thread on another site about this problem.......