I've had mine for two years. When I got it, I was in love. It felt like the linux 'it just works' machine had arrived.
As time has gone on, the experience has degraded substantially. Bluetooth audio has degraded substantially as I've kept up with updates. It basically doesn't have a battery.
Its really felt like PopOS! has gone from an 'it just works' version of linux, to yet-another-power-users-only version of linux.
I have serious hesitance about endorsing either at this point.
The last System 76 I had was great [with Linux] for about a year. But after a year or less, it started having other failures - had to replace the wifi, trackpad stopped working, half the keyboard stopped working. Wouldn't recommend based on that experience.
I have a nearly 4-year old Darter Pro. Pop OS is great on it, and the hardward has been flawless. Except that the speakers are really crappy. Otherwise, great.