The user serviceability and upgrade stories are real. The hardware isn't as svelte as Apple's, but mine has traveled all over the world and has yet to have any major issues. The one hardware failure I had was that the USB-C half of the charging cable on my 13" eventually broke after a few years of abuse, but that used to happen to me with Apple charging cables, too.
Framework has an active initiative to do outreach to different Linux distro communities and give them free hardware to help shore up compatibility. And, on that note, I haven't run into any Linux hardware compatibility issues (not with Pop!_OS, or more recently NixOS).
Speaking for myself, they have a loyal customer for as long as they continue to make this kind of hardware.