I really like this little heater. My husband and I bought this heater for our basement room. There is no heat going to the room, so it gets very cold. Within about 30 to 40 minutes, the whole room was nice and toasty. Im so surprised that it worked so well, and it was at a great price too. Performance The small heater works very well for the basement room I have it in. If the heater is set for high for too long and gets too hot, it will shut off. You will then have to wait for it to cool and then it will turn back on. Not by itself. Ease of Use Very easy to use. Just plug it on and turn it on. It has a couple different settings and adjustments. Durability I havent had the heater for too long, but it has held up inder our crazy home use. Design I think the design is simple. It does what I want it to do. Safety I havent had any problems with saftey. So far, so good!