Seriously considering purchasing a Hydros Control 4. I currently use a Reefkeeper Lite to control my heaters and UV sterilizer. My lights are controlled with a Kessil controller and my pumps also have their own controllers. Dosing handled by Bubble Magus. I am tired of handheld ph testers and I also want to add an ATO to my system. I would love to go Apex but $1000 plus is not in the cards, would prefer to spend the money on coral. Anyone out there have feedback on these? Pros and Cons? Thanks