Nice place to enjoy London without spending all your money, if you are ok to spend a little time within the bus or the tube.
The apartment is nice and clean, although it depends on the good willing of the other guests staying at the same time as you do : you won't share the kitchen and bathroom with Markito, but with other travelers.
Markito, by the way, is pretty responsive, and you don't have to worry too much about the time of arrival, as you will use a key box to get in. But we didn't meet him in person.
The room is as big as it looks, which is comfortable. The furniture don't really matches the photo though, it is not as charming as it appears on them, but there's a huge plus side : a fridge and a TV in the room.
Everything worked just fine (except for the curtain but you can use it anyway), the room was really clean, warm, and practical (many storage spaces).