I actually have the 833 which is the same but a 5 speed design. These are without a doubt the best fans I have owned. They move a lot of air and on the lower settings they are very quiet. It's surprising how much it helps to have air moving around you on a hot night with no AC. I've had no problems at all and I haven't ever found an air circulator that moves as much air for the price. We have a more expensive air circulator at work that is a commercial and this does a better job IMO.