In January I had every intention of picking up one of these. They are beautiful and seemed to have everything I wanted. But I took a moment to look again at alternatives and I'm glad I did. After doing some research it seemed clear that the HP Spectre x360 was actually the ultrabook to have.
I'm not sure how good Linux support is, but with a 512gb M.2 SSD, 16GB, a U series Kaby Lake processor, and better battery life than the XPS, it felt like a non issue. I have no problems running VS and my CentOS VMs.