I do alot of work in my un air-conditioned garage, and I needed something that would heat and cool with out having to cut a large hole in the wall for a window unit or install central air. I have had this for about a year and I cannot say anything bad. It has all the accessories with it so you can vent it through a window, or a wall through a small cutout. This is a big unit and it did a good job cooling and heating my uninsulated garage. Now you cannot expect this thing to keep it at 59 degrees in 100 degree weather, but it does a darn good job. The heater does a very good job for being a heat pump. It has held up through painting, saw dust and general abuse, but has not given me any issues. The best thing about it is the condensation goes into a little jug instead of the garage floor. I would recommend this to anyone as long as they understand this is portable, and only works as well as your environment. If you had this in an insulated room it will freeze you out