I stayed 4 days at Monica's and I totally recommend. Monica sent me all the information I needed before my stay, so the check-in worked well. The apartment is nicely done up and clean. Although I haven't met Monica or her roommate, she was always available if I had a question. The neighbourhood was nice and calm. The underground station is 15 minutes away, but totally okay if you walk it only once or twice per day. The center of London is only 20 minutes away with metro. Acton town offers several restaurant and bars and a supermarket.