I found an ad selling a Flex Maestro over on QTH. Price was good, and seemed legit. I bought it and Paypal'd (not friends and family). He sent tracking information that appeared legit, although I believe the site is bogus now (https://skyexpdpcon.com/web/). My tracking showed correct info at first, but never updated, and now just shows invalid tracking number. He says he has a Flex 6700 he is trying to sell as well, BEWARE!!!!!!!