Our old dishwasher was so noisy that we purposely ran it on a delay when we went to work and school.  We figured we would do a load with this new dishwasher when we were home and it was so quiet that we kept checking to see if it was actually running.  The top rack feature is great. The only problem is getting used to it.  We have sometimes unloaded the dishwasher and forgot we had items on the top rack and they were washed again.  Oh, well, we will eventually adjust.  So far we love the unit.