I booked, paid and confirmed. When I checked in, they didn't have my booking because it hasn't been registered in their reservation system from their AirBNB app... not cool. I was given a different, lower [yep of room. No big deal, other than it not being completely cleaned, but manageable. I just wanted a refund of the amount that I paid vs. the value of the room I was given... nothing too much. But that was an absolute nightmare - reception couldn't do anything, I had to go via AirBNB and then chase.
Not good. The location was great, the room was fine, the price was (initially) good, but their systems are rubbish.