I've been really happy with my Apex. They've been releasing new stuff for it like crazy so it's getting even better. They just released the leak detector stuff a few months ago, the autofeeder this week along with the AI wireless control module. Any day now, they're going to release a completely new interface for the controller that's cloud based. This means you'll be able to go to their site and control your Apex. It's supposedly going to offer wizards and make configuring it much easier. Oh yeah, they're also updating the WMX module to support wireless control for Radion lights (already controls vortech pumps). I'll be able to control practically everything in my tank on a crazy level (already do to an extent). Because of all this, I think it blows the RKE/RKL away. DA isn't keeping up. I'd get a DA controller if I found one really cheap and just needed a more flexible power strip. Honestly, if anyone's looking to buy a new controller, I'm not sure why DA would even be a consideration.