We're very happy with this portable A/C unit. It doesn't take up much floor space and the output is excellent. Installation of the hot air exhaust was straightforward with no special tools needed. It's also much quieter than a window unit. Our house has central air that works great but the end furthest from the unit needs help on some of those 95 -100  degree days here in FL. which seem to be getting hotter and more frequent than ever. It's far more cost effective than replacing the main A/C unit with a much bigger unit.