I just got this controller in last week, for me it is just what I needed. I am doing a 95 gallon reef tank, and was having trouble regulating heat. The graphing for temp is cool, and the ph probe is on the way so I will be able to do that as well.
What I did is used the heater/chiller outlet for my fan (in the sump, that seems to keep it cool enough so far), you just set the temp on temp lower than the off in the heater setup, then it knows its a chiller. Then I attached the heaters to the daylight outlet, and set a cutoff temp. This shuts it down at whatever preset you want, in my case I set that at 78.5. So far the temp varies in my tank about a degree, it wanders between 78 and 79. I probably need to do a little more on mitigating the heat from the lights (at least in the summer). Then I used the refugium light outlet for my normal lighting, and the actinic outlet for my actinics, naturally.
For the networking, I ended up with the powerline ethernet converters, for me it was too much of a hassle to get the wireless working with my network (using some basic security, etc) so I wanted to keep it simple as possible. I then poked a hole in my router so it will forward the traffic, and I can check my aquarium stats from anywhere on the internet. That part is pretty cool, in a geeky sort of way...:lol: The web server only is monitoring though, they have not added any sort of control over the network. IMO, I like that better anyway, it keeps things as simple as possible, which is a good thing for an aquarium.
My opinion on this controller, I think its great as a basic, first controller. Its really easy to setup, I did it in minutes, almost without the instructions. The front panel displays current temp, ph, orp if you use (I don't), time, and functions active (ie: heater/chiller on, lighting outlets on, etc), with a screensaver to turn it off at night. The price is good, I did a bunch of looking before I bought. Really serious reefers with big tanks will probably want to do more (waves, more chiller, etc) but for me, it was perfect. It came quickly, and complete too, very happy with it.