I've had one for a few months and I love it. It's not for the feint of heart but the community is VERY supportive and guys like Robert make it worth every penny (no I don't work for them). Things that I have mine doing:
Typical stuff:
- Fan control (on a timer)
- Feeding mode (turns off Return Pump for X seconds)
- Wave maker functionality
Advanced Stuff
- LED control
-- 4 Meanwell drivers driving 4 colors (RB, Reg Blue, CW and WW)
-- Weather effects.
-- Random cloud cover
-- Lightning storm during cloud cover (in progress)
-- Lightning works with additional PWM Expansion module (needed to driver 4 independent drivers. It can drive 8)
- Temp reporting (online and iphone notification)
-- 3 Temps (water, lights, room)
- PH reporting (online and iphone notification)
- Overflow protection
-- Used Single High ATO function and placed sensor high in my overflow.
-- If my downpipe clogs and water rises it triggers sensor and shuts off my return pump
- Customized display
- Remote access to controller via RDP and/or LogMeIn Ignition on my iPad.
- It can do a lot more and it's doing more than I have listed but that's the basics so far.
All in all its pretty cool. Especially with a community that is open to development support. The client is pretty awesome too. That what is pushing notifications out and stuff.
I'd definitely recommend it.
Here is my current banner that is constantly updated