I have a XPS13, the current 9333 model. It's nice, but it makes an annoying noise, and it seems Dell aren't going to fix it, so I'm going to have to return it. It seems this only effects people with good hearing, and work in quiet environments, though. More info: http://en.community.dell.com/support-forums/laptop/f/3518/t/...

I also wasn't impressed with the Ubuntu installation, it didn't work too well out of the box for me (sorry I can't remember specifics, so take this with a pinch of salt). I spent some time installing and configuring the latest Ubuntu, got to something usable but it was some work.

I tried the chromebook pixel before, but installing linux was problematic, and the specs are impractical. A shame as I liked the screen.

I will probably get a T series thinkpad now.