[Real Real] Anyone bought from Real Real or similar sites?

So, I've been considering adding a new piece to my collection, and as I was doing research came across one for a fantastic price on The Real Real. For those of you who aren't familiar, Real Real is basically a used luxury goods reseller. As I understand it they have experts that authenticate their inventory, but as far as I can tell they specialize in women's designer swag (high end leather bags and stuff like that, from what I can see) rather than luxury watches. I imagine they can spot a fake but I doubt they open the caseback or throw it on a timegrapher. Then again, neither do most of the trusted sellers on the various forums.

Wondering if anyone has any thoughts or experiences buying from them or similar shops? It's a great deal for this particular watch and they do offer returns should I have an issue.