I've owned the first gen Replicator 2 for a year with a couple thousand hours of print done. It was honestly a pain in the ass to maintain as it constantly needed cleaning and readjustment. The worst part is the built in extruder was horrible so we'd have to print our own parts for it and build it with bearings and spring - and this would have to be reprinted after every hundred or so hours since the fans would sometimes fail and it'd just overheat and warp it useless. It printed well when it worked but was too much of a hassle to upkeep.