If you do DIY led, the apex is better, it got 4 vs channels out of the box. The reefkeeper, you need to get the alc module and it have 2.
If net option is a must for you then looks elsewhere and stay away from the reefkeeper net module, it's darn slow and flaky..
Between the reefkeeper and apex, I'll take the apex any day. I started with the reefkeeper lite basic, module after module upgrade to the point I was forced to upgrade to their Elite model because the lite unit can only handle 4 modules... Now I'm an apex user, couldn't be happier, the programming process is very limited with the reefkeeper, you pretty much limit to the check box and drop down menu they gave you vs the apex you can write your own criteria.