We bought 3 of these dehumidifiers 2 years ago to put in our basement as we were having major problems with mould on the walls and ceiling of our basement and garage. These units have totally eliminated that problem. This month we bought another to keep the mould out of our garage. The instructions are easy to follow and the units can be programmed to automatically respond to the seasonal changes in humidity. We have had no problems whatsoever with these units.