I had to cancel and the hotel did not accept any attempt to negotiate a cancellation fee. I was fully charged even though I did notify this with anticipation. On the other hand, they can and will cancel your reservation without even notifying you in advance. I know this because they did that to me before. Sadly, my experience was not positive.
I went and used the bathroom one time, after that one time use the toilet would not flush anymore, the bed is very uncomfortable and it makes way to much noise!