Been staying in the most random Air BnB. Think posh mansion with basement flat - we are staying in the flag and the owners are upstairs. Not cheap. Well past it's best and normally I would have complained for the cost. But the owners are sooo lovely I think they would be heartbroken. They genuinely don't see the problems. Help me with some constructive feedback that gets the point over to others looking without upsetting owners too much?
Also checked reviews and no one has said a bad word yet!