So far (in very hot Arkansas) has done a credible job keeping the room cool. Some days it struggles to keep the temp down, though, even though the room is considerably smaller than the AC's claimed room size. (I intentionally got a unit one size bigger than claims, still maybe not quite big enough.)

Pros:
- washable filters

Cons:
- filters need to be washed weekly
- two filters instead of one
- not as convenient as cheap replaceable fiber filters
- the thing is surprisingly heavy
- outlet hose too short (I have it stretched at its max length and it barely makes it to the window; have to disconnect to do anything with the unit; will probably put the unit on a short table or stool in the near future)
- have to do some creative patchwork to get the outlet to seal through an awning window