Thank you for your comment.
There was a misunderstanding about your arrival time, you traveled by taxi and no Metro as expected (slower) regret having waited this precious time, this city is amazing and there is not time to waste!
About the water, sorry, but the month of May it was very, very wet indeed , the XVI century walls are in granite getting infiltrated in extreme rain.
Now already the space have an automatic system to avoid such situations when it rains unusually.
About the hot water we have a sufficient deposit to 4 people, naturally there is a limit... if take a long bath (hidromassage) have to wait for the warm water again.
However, you could have warned us that you are not satisfied, we could find an alternative in the other flat.