Our first "Buzz" worked for perhaps two weeks before it stopped pumping fluid. During that time it met our expectations. Like others have mentioned, after calling for service we were told to cut off the cord and return the unit. Our replacement arrived and worked for a week before it quit buzzing.Bottom line: It would be a decent product if the quality was adequate, but judging from my experience and other reviews it has serious design or production flaws that result in a very high failure rate. Even if you like the way it works there is a good chance it will be broken in a week or two and nobody deserves that kind of frustration.