Quincy compressors seems to have a good reputation in general based I would assume on older units that have been in use for years. My question is, how long have the PLT and QT series been around as they are currently being manufactured? I see these for sale on several of the well known internet dealer sites at a really nice price; but this leads me to wonder if the Nothern Tool, Compressor Direct and other offerings are made to a lesser price point/degree than perhaps Quincy their undustrial units on whihc they made there reputation. Do they currently have a good track record with these series of products? I would appreciate your comments.