I recently won a robo-tank on reef2reef and got it hooked up a couple of days ago. I have been using DIY reefpi controllers for almost a year now. I have to say I really like the robo-tank. I am mediocre at soldiering, and not having to do any of that is nice. There are a ton of connections for the robo-tank. Reefpi can do all kinds of monitoring (float, optical, non-contact sensors). Temperature monitoring and control. Dosing or other dc pump control. Lights like Kessel or anything that is 0-10v control.