Bought this last summer and it worked well, although it vibrated a lot and had a low-frequency rumble that shook the walls. Went to install it for the summer again this year and it would not cool at all. Unit turned on fine, blower worked, but it would not cool even though it sounded like the compressor was kicking on. Luckily this was in the 1 year warranty timeframe so I'll be getting a replacement, but not confident that this replacement unit will last more than one season either.