We have had our Haier portable Air Conditioner for 2 years and we love it! Even though our house has central A/C, our bedroom is always a little warm. It would waste money to set our thermostat lower and cool the whole house - so we just turn the central A/C off, shut our brm door, and let our Haier keep us nice and cool. It's great in spring or fall too when there are just a few unusually hot evenings. It is easy to use, easy to clean, easy to store, and easy to set up each summer. Plus (since our windows face the front of our house) it looks so much nicer than having an ugly window unit sticking out there. You don't even notice the one little vent! We have never HAD to use it in another room, but we like the fact that we COULD move it around easily, say if our central A/C went out. I have recommended this unit to a few clients also who either do not have cental air in their older homes or who want to just cool one room. We got a great buy on ours at Big Lots, but I have checked the price at other stores this summer and it is reasonably priced no matter where you buy it. The controls are easy to use and understand. The timer function is great! Just set it for a few hours and you don't have to get out of bed to turn it off. Ours does have the remote control too, which is a nice feature. The only design change I would make is to have the vent hose be a little more flexible, and a few more positions for the air vent fins.