"The backglass is really good, no touch up or loss."
I bought a K&Q on this description with no pictures from a guy 20 or so years back who told me that. He dropped it off at my warehouse when I was out seeing someone. When I returned a few minutes after he left, my guys had set it up. I took a look and it was just brutal, horrible, a total lie. I called him on his cell and told him how messed up it was and how he totally BS'd me. He basically told me too bad, tough luck.
I waited a few minutes, called him back, told him no problem, I was going to keep the machine, but reminded him that I had been dealing in coin-op for years, and started rattling off every name in my address book (before Outlook having my contacts) that I was going to call and email about what happened along with his name and contact details. I then suggested he come back before I reached C in my contacts list to pick up his piece of junk.
He came back within an hour or so with cash. I wouldn't even talk with him. I had my guys load up his crappy machine, count the cash and send him on his way. Decades of dealing in coin-op and thank goodness, I can count on one hand the experiences like this.