Touch screen is a big con for me. I've had an xps 13 for a brief time one year ago. It was the QHD model, I wanted the resolution. Well, the screen isn't bright enough and there is too much glare, almost like a mirror. It drains the battery faster, even if you disable the touch sensor. Although the colors were nice, white areas would look dirty, like there was some grayish pattern, probably the sensor grid. All this just drove my OCD crazy and I sold it.
Agreed, I had the 2015 model for personal use and bought the 2016 model for work: I got the QHD screen on the latter, and while I appreciate the screen quality, I really don't think it's worth it.