just installed this rack on my 2013 JKU. Install went pretty weel with a couple of smallish issues. 1. Instructions were only adequate. Were it not for the youtube how-to things would have been different. As it was, only the drilling of ten holes in my jeep was the most traumatic. But most difficult issue was that not all of the parts were delivered. I got two packages and when laying out the parts found that the flooring was not present. A chat with quadratec revealed that there should have been three packages. The guys at q-tech are sending the remaining parts so I can complete the install.
So far, the rack appeared very sturdy and robust. It is also quite heavy. But unlike the Kargomaster rack on my 2004 TJ, the rack is mostly sealed so in cannot rust from the inside out. Only the cross beam and the flooring appear to be open tubing, but a dollop of silicone seal before plugging the ends should take care of that.
The road noise at 70 mph is considerable, especially with my soft top so I will probably install the wind deflector. still, $170 seems a bit high, but on a $1200 rack, I'm not too surprised.
I will update once I have put some miles under it.
UPDATE: installed wind deflector which reduced the wind noise a bit. Still pretty loud. I'll just have to get a better set of speakers