The description is accurate! There really is no air conditioner, but if you open the window at night and blow the fan inward, it gets the job done. Also, this is the fanciest shower ever. Another fun thing about this airbnb is it is more traditional, in that people leave their toiletries behind, which can come in handy so you don't have to buy a bunch of things you only need to use for a few days.
Internet was plenty fast for taking meetings and other work-related stuff. There were a couple friendly dogs that liked saying hi as well, so hope you're into that!
If these conditions are OK for you, I definitely recommend this little cottage. It does not get much better in West Hawaii.