I've had the Asante Butler M1 for a week now and have used it a number of times. I have used Rhoomba models in the past and I have one that is being used for the ground floor. Asante is a great value. It's quiet and can be heard clearly from hardwood floors and low-pile carpets. It doesn't display floors digitally like expensive devices do, but it does have some patterns it supports that work well. There is also a remote control for programming. For this price, the M1 is very good value for money!
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