Yes, I've been using a Retina MacBook Pro 13" (early 15) and 15" (mid 15) and just picked up the xps 13 9350 with iris pro. There are definitely some quality control issues but once you get a working model with no faults (I had one that wouldn't reboot and had terrible coil whine, one that had loose trackpad and yellow tint on screen but this could also be because of Amazon's shitty packaging where the laptop was in…
I never understood how people can deal with multiple rounds of RMAing (or whatever) a defective product and still turn around and recommend it to other people. If a company can't consistently deliver their products intact and functional, why should I waste hours of my time (which effectively increases the price of the product by hundreds of dollars) picking up their mess?
The fact that this is still a thing kinda says to me that PC laptop OEMs still aren't ready to go toe to toe with Apple in the customer experience department, despite the overall improved quality of their offerings.