5 stars for the position in a nice area of London: Hammersmith underground is a 5 min walk, pubs/restaurants/shops are very close too. The flat is tiny, quiet and has enough room for a single person to stay for few days. There're steep stairs to reach the 1st floor flat, however I received a great help with my luggage from the person who checked me in. The kitchen area needs some improvements, in the bathroom there's a great shower area with everything you need in a bathroom.
So if you're not too concerned about cooking meals (like I am) it's a good place to stay at a reasonable price in London. Thanks Boris !