I've only used this AC for about a half hour, but it cools surprisingly well. It's not whisper-quiet by any means, but it's not noisy, either. I'd say it's about as loud as I'd expect. Very easy to set up and use, but hard to roll on carpet because the casters are so tiny. That's where having a handle on top (like rolling luggage) would be a lifesaver! A simple, pop-up handle on top would make this unit 10 times easier to move across carpet and brick flooring. Other than that, I think it's a pretty good little unit. Time will tell if it's reliable, but I have a few other Frigidaire products and they've all been very reliable.