This is a good house for a family or a big group, and in a fantastic location right opposite Kentish Town tube and within walking distance of Camden Town.
We were there in the weeks leading up to Christmas with a family of five. The art and decor is fab -- Joanna has a great aesthetic. I particularly liked the ample lighting; so many airbnbs and hotel rooms have really dreadful dim lighting, but this house had plenty of lamps and different light sources. Nice big kitchen and kitchen table. Not a lot of living room seating, but we made do.
There are supposedly two bathrooms but to be honest, functionally speaking there is only one bathroom, because the upstairs shower didn't work. I would probably also note that you should be careful on the stairs, as they are painted in gloss paint for some reason, and are a little slippery; one of our guests slipped down them and got some bumps and bruises. Also, the toilet seat in the upstairs bathroom is broken and entirely detached -- this is another safety hazard that I hope will be addressed. It's a heavy seat; if it fell onto someone's foot they'd have a broken toe for sure.
The house felt secure (good locks on the front door) and even though it's right next to the pub, we didn't have any problems with noise. (Also the pub is LOVELY and they do good food; you should stop in if you stay here.) The front rooms, as some other reviewers have mentioned, get some ambient noise from the street, but honestly it's nothing terrible, and no more than you would expect in London. We didn't have any issue with it.
Overall we enjoyed our stay!