I'm an industrial software engineer... I work with controllers of all sorts. Never wanted to combine work and hobby, so I resisted controllers for many years. While setting up my 140 last summer, I decided to pick up a cheap Reefkeeper Lite, just to run my heater and lights. It now runs pretty much everything, and I'll never have an aquarium without a controller again. Apex has the reputation, but my reefkeeper lite is dead simple, does what I need it to do, completely reliable, and affordable.