This is such a great appliance. We use it in a cabin in NH so that my 90 year old mother does not need to climb a set of stairs every time she needs to use the bathroom. It’s quiet, odorless, and she has no problem servicing it if we are not up. The hand rails are an excellent addition for an elderly person. And, to top it off, customer service with this company is top notch!! If you are looking for a convenient waterless toilet that is easy to work with, this is it!! I’d give it more stars, but Google only has five.