I recently was able to visit the GHL USA office in Fort Myers and met Marco's wife. Super nice and answered all the questions I had about the Profilux 4. I was able to buy it direct. This is my first aquarium controller. The software was pretty intuitive to use and setup. Currently I have it controlling my heater, Tunze 6055 wavemaker, and have a low level sensor(float) for my ATO reservoir, so i know when to refill it. I plan on setting up an ATO to replace my Tunze ATO in a couple weeks. Just wanted to post that I love the P4 and think its a great aquarium controller.
