I'm running a fully specc'd Dell XPS 13 with Ubuntu on it, and it's been amazing. My only quibbles are battery life, which is acceptable but not as good as I'd

I'm running a fully specc'd Dell XPS 13 with Ubuntu on it, and it's been amazing. My only quibbles are battery life, which is acceptable but not as good as I'd like, and the screen, which is fabulous - but I have the touch screen (I got this option by accident) and the hidpi resolution isn't supported by some software. It's not enough of a problem to limit my workflow so I kept it. I'd say it's a great laptop, just don't get the touch screen. That'd probably help with the battery life as well.