I never thought I would use a controller/monitor system. I thought there were so many other things I could use the $300+ for. And then I thought about it. It monitors everything I normally test for, so no need for test kit clutter or time spent (lets face it, it takes me damn near an hour to test my tank), it looks fancy (which is a big plus
) and it makes the whole keeping reef tanks a little easier in my mind. Which is while I'll be putting one on my next system.