Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Imported Tumbler

This is a cheap knock off of the Loretone 3A model. The belts are poorly made and break. The bearings for the shaft drive are cheap plastic that fracture and then sieze the unit (after cutting into the body of the tumbler) and the plastic inserts in the armature liquify and seize the motor until it burns out. Very long lead time till parts are available for replacement.