St Katherine's Docks is a great location, and Colin's place is quite comfortable. It's small, which is consistent with being in London, but well supplied, very quiet, and clean. Being close to Waitrose, Pret Manger, many excellent restaurants, a gym, the Tower Bridge, and the Tower Hill tube station is a huge plus.
A couple of nits - the shower curtain bar fell several times, although Colin's helper David restored it for us; and as noted under "accuracy," we did not know until checking in that there appears to be an issue with the place being on airbnb from the homeowners' association standpoint - we received this message from David:
"If neighbours or someone else ask who you are, knock on the door, etc.., simply say you are friends visiting, not paying guests, to avoid any potential trouble with the residents. Thank you."
I do not like to be put in the potential position of dissembling, and it was unsettling to know we might run into trouble.