Well I wanted to wait to update till I got it completely programmed it was a little tricky but overall not to bad you can control everything lights sump light feeding you can monitor all your parameters such as temp salinity ph orp dissolved oxygen I got the module to hook my radions and my jebeao pumps to the apex which gives you way more control of the flow patterns then the standard controller that comes with it the parameter is neat because I measured par under my original lights and set the leds to match pretty close to what I had so I can acclimate the coral .. the current eflux DC pump so far is awesome it has zero noise from it you can't even tell it's running a far cry from my old quiet one 4000 hh that thing was reliable but very loud