This unit is very quiet. I like the safety feature of the top closing covering the open slot when not in use; a safety feature especially valuable if there are children in the household.
My husband used it and was shredding 6-10 papers for 30 minutes when it decided to cut off. But after is rested 15 minutes it was ready to go again. Still a good shredder.
This shredder is not as good quality as previous Staples shredders I have owned. The multi page feeder is a nice feature but is a little finicky. Most annoying is the lack of places to attach the shredder bag so that all the shredded material falls into the bag and not in the bin. The shredder does the job but I expected better quality for the price.