Well I have the mechanical ability to go over the bike (I have been learning and flipping bikes on CL over the past year) so I figure it would require the same amount of my time to check and adjust as anything we might come across on CL that is used. I am mostly trying to find someone who has actually tried/used one for a while.
I know all about the quality of the really cheap department store bikes -- Got a freebie Roadmaster that only netted a seat quick release bolt and a seat -- There was nothing else on the bike worth taking off and putting into the parts box. That was a pretty new one. When I have pulled old ones out of the trash, well still not great quality, but I could at least grad the diacompe brakes and few other bits.