Been running my tank coming up on two years now and I started with an apex. I knew it would be useful for me so I planned on it, but they are very expensive so I watched and waited till I could get a used one. I didn't need the most recent iteration so I was able to get one model back with temp and ph probes along with two eb8's for $250! That made it very much worth the cost. Like most apex users it runs pretty much everything, adds redundancy, and lets me control things from anywhere! Very much a fan 





