I do, I have one for 5 years, prior to the aquatronica I've used the RK and the octopus. IMO aquatronica is a very nice and complete controller, easy to upgrade the firmware and hardware, it is by no means perfect but the cons are very few.
let me know if you have any specific question.
I love my aquatronica...the only complain I have are there isn't much user using it, and they dont have a DIY LEDs dimming modules. Beside that, they are great.. Easy to program and very reliable. They have an IPad program & an Android program you could use to manage them.
I know they are being distributed and supported by Hydor USA these days, so hopefully getting parts is easy now. (Quick scan turns them up on Amazon, DrsFoster, MDepot among others.) Wasn't the case for a long while. Aquatronica customers I know all speak like the two above - good quality product. As a ReefKeeper Lite user I can attest there are at least no more warts on the Aquatronica side and Aquatronica does seem to be a more mature product, so there may even be fewer warts. Sorry to bring warts into the discussion.