I spent some days at Yassine's place and can recommend it to everybody who wants to spend up to one week in London. It was very easy to communicate with him and not complicated at all. The next bus station is 5mins away, with the linie 10 you come directly to Hyde Park, Harrods, Oxford Street and so on. The Underground Station Earl's Court is 10min. away - and on the way you find a lot of coffee shops, supermarkets and some places for little snacks.
I also forgot my adapter but Yassine helped me out with his charger! :)