The printer performs very well. It will jam if using paper with 3 holes in automatic duplex, but in manual duplex this same paper will do fine. Other than than, this printer performed very well once understood. The four stars for ease of use refer to the initial difficulty in learning how to use this particular printer. Also some surprising behavior when the printer thought it detected a problem when there was no none and from there proceeded to "correct" and this correction ruined the whole job.