This is a fantastic flat, my girlfriend and I stayed there for about a week and loved it, it's comfortable, the amenities are great, the bed is super comfortable, the living room is lovely, the kitchen is convenient, it's everything we wished for and more. Additionally we were welcomed by Ramon's wife who was extremely friendly and helpful. I recommend this place warmly, a quiet haven in busy London!
The only thing to bear in mind is that the area is not very well connected to the center of the city (e.g. going to Kings Cross from there by public transport takes about 50 minutes) but if you're not in a hurry and don't mind that (we didn't) then this is the place for you.