I have been really considering this as well. The only thing in worried about is the jr upgradable and could it be what the regular controller is with just adding parts??? From what I understand the jr can be added to. Extra power strips and modules and float switches and it will control everything you need. It does have iPhone app and you do not need the display for it to work just plugged into your network.
But is it worth buying the jr?? Would just have to add other components that comes with the full apex. Although can buy in stages.