I've been using XPS 13 9350 then 9380 for a good while with Ubuntu. Mostly they just work and are fine for coding if you don't need a lot of oomph. The niggles

I've been using XPS 13 9350 then 9380 for a good while with Ubuntu. Mostly they just work and are fine for coding if you don't need a lot of oomph. The niggles are the battery life, which is so-so and that Gnome doesn't support mixed resolution screens well (I have the hidpi xps with a 2k external). I've also been using a Latitude 7400 daily until quite recently and that was better (good battery life, lower res screen worked better with the external monitor) and has better built-in connectivity if you care for the rather "industrial" styling. Marginally better keyboard layout too IMO. Don't buy Dell docks btw - I had lots of problems with those and when they need firmware upgrades you can't do it from Linux; I'm having much more luck with a Belkin one. I'd probably go for the Latitude if I was in the market for a new laptop right now.