This may not be Bosch's quietest DW, but it is VERY quiet when operating.  It has performed very well to date in cleaning.  Still experimenting with Extra Dry - or not.  It is fun to work with the phone app and do configurations and kick it off.  We have not had it very long, but Bosch appears to deserve all the high ratings in DW reviews.  We had to replace a broken DW in our FL condo, but I will now seriously go for a Bosch when our home DW needs replacing.