I purchased this unit to replace a similar item from another manufacturer. The other w/d combo had an agitator and I was anxious to use this unit with an impeller instead. I think I made a mistake. I cannot leave the house with a load of laundry in this washer because I never know if it will be out of balance. I can (and have) washed two small bath mats in this washer and it was so unbalanced that it would not function until I re-arranged the load myself. I use the maximum rinse setting all the time. I had a technician come to my house to check this, it was so unpredictable. The tech found nothing out of the ordinary, which meant I had to pay for the visit. If you buy one of these, be careful about arranging the load, or leaving your house.