Sent a lens and another item to get an estimate on what I might expect in cash or trade. The cash offer was lower than I could get here selling in the forum, but I really wanted a trade for a particular new lens anyway. Was offered a demo lens plus cash for my equipment. Didn't really want to risk the demo lens, and was offered an open box, like new lens for a straight-up trade. Received a lesser lens due to some communication confusion, but Jack Gold at Adorama was able to come through and offer me a more expensive lens for my equipment plus a little cash on my end. Getting the new lens soon. And although I don't mind selling here and have sold/bought/traded THOUSANDS upon THOUSANDS of dollars of equipment here (including about $1500 in the past month and much more years ago), all I had to do was send my stuff in (at Adorama's cost via UPS), have a few conversations, then wait for them to ship back out to me. No messing around with listing, negotiations, monitoring threads, paypal, shipping, etc. No headaches.
Just passing on a very positive experience, since I know that all we ever hear about are the negative experiences. Hope Helen sees this.