Definitely get the apex I love mine. No more unplugging for me when I change water or checking reactors. Just log on and turn it of.

Apex
 

I have a ReefKeeper Lite and I wish I had gotten the Apex. Got the Net Module as well but that only means I can monitor my probes via internet. No way for me to control my equipment via iPhone like you can with an Apex. For the price of a RKL and the net module, I'm almost at what I would have spent for the Apex basic.