I had a lovely stay at Kat's place!
Kat wasn't there but her friend was there for me at check in and explained the house rules :-)
The flat is clean and has everything you need for your stay. As to the room, it has a big window, drawers, lamps, desk (and chair) and most importantly a comfy bed !
The neighbourhood is quite residential but there are also a lot of shops and restaurants, so you'll find everything you need in a five minute walk.
It is also a ten minute walk to the Ally Pally, perfect if you're going to a concert there :-)
Easy access to buses as well!
Would definitely recommend !