Very good to excellent rating. I previously had a Badger brand unit. It lasted a long time (8 years). However, I was looking for a smaller unit with the same HP of 1/2, ease of installation and a more quiet sound. Also, being on fixed income, I need one that didn't cost too much. This unit fit that criteria. It was installed by a person with average amount of plumbing and electrical experience with not much trouble. The most difficult thing was getting the old unit to come out.