Gotta tell you, I think the apex is worth every penny. The tech is a little dated, but it works. I started small, but added on a lot of components. It allows me run additional float sensors to control my skimmer based on water level ie it shuts off when I'm doing a WC. Ph monitor is invaluable and I love ORP. Salinity monitor isn't quite working like I hoped, but I also have water sensors that will send me alerts. I could have it shut things down, but that seems a recipe for disaster.
I have feed macros set up depending on how I'm feeding. For example, feed A ( I wish we could rename them) turns off all my pumps. 3 min later my mp40 kicks on then 5 min later the back power heads kick on then 15 min later the main pump kicks back on. Feed B does the same thing except it does not turn off the main pump. Feed C just turns my skimmer off for 90 min when I dose. Feed D is for WC and shuts down all the appropriate pumps, skimmer, ATO etc for 45 min.
Just being able to do all of this from my phone is awesome .