After the Mac I bought a Dell XPS 15, which ran Linux fine but I had issues with the dual-boot and GRUB setup - I could probably have fixed them, but meh.

I then bought a Purism 13, which has been awesome (apart from a niggling problem with the space bar). Having a laptop designed from the ground up to be open, maintainable, and running Linux is an amazing experience. I had a problem with the screen on this one and tech support said "open up the back of the case and have a look to see if anything looks odd". I had more or less the exact same issue with the MBP and had to do without my laptop for a week while they replaced the screen.