I loved my stay at William and Giusy's place. Giusy made me feel instantly at home, friendly and very helpful. The room is very inviting and spacious.
It's right in the midst of Camden, great to explore the action of the markets, canals, regents park... plus great access to transport to explore London.
It has the overground railway line close by, you can hear the occasional train so plugs to sleep is good idea. Highly recommended!