We bought this printer as it was reasonably priced, and had the main features we wanted, laser, duplex, manual feed, and relatively fast. What we didn't realise we were buying was a printer that sounds like it's possessed. The first printer (yes we ended up getting a second) would emit a horrible mechanical whine when running multiple pages through the duplex process. We sorted out a replacement through Brother. This one turned out to be even worse! Not only does it still have a high pitched whine, it does it after it finishes printing ANY job, not just duplex.