As there was a problem with the shower, I was told at check-in my room was unavailable, and I was put in another room. This one was much smaller, a single not a double, so I messaged the host and was offered either a discount or a full refund if I checked out the next day which I did.
Sarah is clearly a great host and the location was really convenient— right next to the underground station. The place was very clean. Would come back again if the real room was available!