Feel free to ask anything. There is one oddity with my Lemur Pro and System76 is aware of it — they don't know the cause. Since a particular version of the kernel, I must add intel_idle.max_cstate=4 as a kernel parameter. Otherwise, it won't boot. Or it will mostly boot. Or it'll boot and then freeze. It's rather odd.
I expect the more recent Lemur Pros don't have this issue.
The other thing with the Lemur Pro: speakers are terrible. But I knew that from reviews and I don't care since it's not like I'm using it as a multimedia boom box 😜
Other than that, it's fine. Rarely hear the fan unless I'm compiling something large (and it is a quiet fan). 40G RAM, 2TB storage (can go to 4TB), good keyboard, good trackpad, and I like that it has a matte display (I'm not a fan of the high gloss screens).