Swung by Metro Auto Barn in Bellevue over the weekend since a few people here asked about them. They keep around 89 vehicles, mostly family SUVs and sedans. They were totally fine with my mechanic doing a once-over, which honestly settles half the trust question.
Lot address: 8968 Family Plaza, Bellevue, NE. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Bellevue lot gate.
Paper side: licensed with the state (looked it up), about 93% of stock has title in hand per the office, and they offer no warranty — as-is, but any inspection welcome.
Overall: mixed feelings. Cars looked right but I got two different answers on a title question, and that's my personal tripwire. If you go, get the title status in writing before any deposit.