I would recommend this studio without hesitating to anyone traveling to London.
Alessandro is a very reactive host and the small attentions made our stay even better (he had stocked the place with snacks and left us a nice bottle of wine).
The place is small but has everything you need and is absolutely lovely. The balcony gives you extra space to relax and enjoy a drink during the evening.
The place is very clean and well situated, a short and beautiful 20 minute walk from Buckingham palace.
I would recommend earplugs if you are a light sleeper since the studio faces the street but we slept just fine. The neighborhood is rather quiet.
Don't hesitate to book, you won't regret it.