Welcome to the forums! Mine is a demo car (2023 Pure AWD). It was pretty close to being new. There were a few cosmetic items (mainly interior/exterior plastic trim pieces) that the studio took care of after I took delivery. I do know that they changed their standards for demo vehicles a few weeks after I took delivery of mine, so not sure what the latest is or how much they’d take care of some of those items today.
In any event, I would have been quite happy with the car as is, but I was very happy after their fixes. Lucid service (at least in Millbrae in the SF Bay Area) is excellent as has been stated many times before.
I would absolutely buy a demo car again from Lucid over one from a private owner or other dealer (all other things being equal). I would assume that the demo cars are periodically inspected by Lucid. Mine certainly looks like it was given the lack of a lot of issues that some other folks here have reported.