I don't have any experience with the reef keeper. I put off buying an apex because I was afraid of the big instruction manual and writing code. Or more that I didn't want to spend the money and not utilize it properly. Now that it's cloud based with fusion it's convenient, and not near as bad as I thought it would be. Btw with the junior, it can still be controlled via Mobil device through fusion. Have one of those on the work tank. The new model on one of the home tanks,contemplating at least a junior on the second home tank. Cheap insurance and upgradable. Personally I think Neptune forum sucks. It's better to hook up with someone you can have a real conversation with or direct support. But I'm glad I have the new model, utilizing the power consumption power bar, and like not having to have the extra modules.