I bought a System76 Lemur a few years ago. It has a pretty standard ultra-book form factor, but is pretty light, and the battery life was phenomonal. I regularly got 20+ hours on a single charge when doing light development work. The IPS screen was good, the trackpad was nice, the keyboard was ok, and the speakers are... well, completely terrible. I never really had any software issues on it running Pop. Maybe it would get stuck coming out of suspend every few months or so? I liked it a lot as an upgrade from my 2013 MacBook Air.
BUT....
Support was pretty awful, and I'm not sure I'd recommend getting one because of it unfortunately. :( Out of the box, the ctrl key was bad and would unclip with a nasty "crunch" noise. I had to send it in to get that fixed, though it was pretty painless. Then a few months later the wifi card died, and I had to send it in again. There was a lot of back and forth to get it fixed that time. Then as it was about to got out of warranty it died again. This time was like pulling teeth. I had to triple check things and send them logs multiple times, each time with a turnaround of several days. It took weeks for them to finally say "sounds like a hardware issue, what would you like us to do?". I was flabergasted. It was still in warranty, why would you even ask that?! I spent several weeks trying to convince them my in warranty device needed repairs and they wanted to know if I wanted it fixed?! It took 6 weeks in total to get it fixed, and it turned out that it was a bad connector on the motherboard causing the issues the whole time. When I got it back it was missing a couple screws and the power supply. They basically called me a liar. -_- A couple weeks ago it died completely and won't power on anymore. I chatted with support again, but they just started giving me the same run-around. I gave up.
I pre-ordered an AMD Framework back in March. Now I'm kinda grumpy because I have no laptop and I bought one that might not ship for another month or two. I wasn't too worried if the AMD Framework had some early adopter issues as the Lemur still worked when I put in the pre-order. Grrr. -_- My old 2013 MacBook Air is still in pristine condition though... Considering just putting Linux on that to use for a few months.