A narrow boat in February with no heating and cold water is pretty unbearable.
The instructions for the same were not sufficiently clear, when we did get the water on the heating did not work at any time.
Aside from this the boat was clean and well kept, thankfully the duvet warm and bed comfortable.
The location is first rate and you're in a great part of London - I really do feel the host should make the point about heating and water more emphatic especially if they're going to rent out the boat in winter.