I've just started with my first grow with one. Growing NL and am about 3 weeks in. I have had to make some modifications, added a small fan to the inside veg chamber. I've noticed that if my ambient temp outside the box is 72-75 degrees, the box will run about 85 degrees and thats the 125w CFL. I have heard that when folks put it in the flowering chamber, they add an inline fan with variable speed control.
Support is good, depending on who you talk to. Some of them are very good, some are a little ambivilent and some have the "used car salesman" mentality.
Overall I've been happy with the box. Be warned though...it is BIG. I had to remove a door frame to squeeze it through an awkward bend in the hallway. So be aware of the size and plan accordingly.
Great "Turnkey system", am learning alot about the process. But if you aren't ready to commit to running this thing....you may want to go with something cheaper. It was a pretty big investment for me.
Oh...and if you live in the US, be prepared to give them your SS#.