Im not sure what problems people are even envisioning having. I got a diy Anet8 that was badly assembled by somebody else years ago that they gave to me for free. I tightened up some fittings and strapped down some loose wires and it still just works. If newer and supposedly better printers were more difficult I would consider them junk, in operation they aren't that complicated of machines. The most complicated thing I gotta do is usually change the print temp up or down 5 degrees for different company filaments.