Gary as mentioned if you have the $ the plant is probably the better one to have, but I've been using a MIlwaukee for years w/o any problems and have a Reef Geek as a backup..the only thing I do is because the bubble counter is connected to the bubble adjustment pin about once a year is fill it with vinegar and let it sit then fully open up the valve which will clean any deposts off the pin to keep the bubble count accurate....