Had a great stay here for my self-quarantine and everything is as advertised. The Annexe had everything I needed including the fully equipped kitchen which was really useful.
Bed was comfortable and I had no issues with the sound from the boiler since it's summer and wasn't on much. As other reviews mentioned, you can hear footsteps from the ceiling, but it's not too bad and you can generally tell the people upstairs are conscious about their footsteps and try not to let it be too disruptive.
Overall great stay and would recommend for future travellers to the area.