I run the ARB variation of that rack that has sides all the way around. I got it used about 4 years ago and it's been used and abused and has held up great. No chipping to the powder coat or any other damage although it gets hit regularly by tree branches. I have bolted all kinds of different gear to it without issue including my hi-lift, shovel, awning etc Although ARB provides very few mounting accessories you can check out FourTreks for a variety of options that will attach to the round bar and there's other options available for lighter weight gear. Mounting to the factory roof channel was no issue and has never leaked. (RTV was applies liberally during install)
This is a very solidly built roof rack and it's heavy. I don't recall the weight on the style you're looking at but I'd look at the alloy version to save a few pounds. It's also surprisingly quiet without a faring. It does interrupt the air flow so opening the sunroof at speed isn't great. I generally just open the sunroof by tilt in the rear.
Overall I'd definitely recommend it.
