Instruct: Classify an Amazon review into positive or negative sentiment.
Query: DO NOT BUY !!

Run 5 average size pharmacies. Purchased 5 of these units and have had trouble with ALL of them. They run great for about 6 months, then start jamming paper in the rear door area. Called Brother's which was absolutely no help. Took them 1 at a time into a Brother's service center and paid $60 a piece to have them clean them and try to correct the issue. At best they went another 2 months before the problem started again. I have since replaced all of them with Samsung models and have had no problems. DO NOT waste your money on this unit, there are plenty of other choices out there.