Well, although it already seemed a good house according to the website, it was much better than expected. The house is a basement well located (a 30 minutes walk to Hyde Park, and less to Portobello and Notting Hill), very near from Grand Union Channel (Paddington branch) and very well connnected by underground ( a stop to 5 min. or even less).
The neighbourhood is very quiet and it has many supermarkets, shops, restaurants. It is also a warranty to have a police station in the nearby, but the atmosphere is completely gentle, we did'nt have any feeling of insecurity, quite the opposite.
The lodgment is very comfortable and clean and perfectly equipped (we also miss something in our travels and not in this occassion, well, maybe an italian express coffee machine, but there is a french one which compensates). Comfortable beds, spacious and clean bathroom, a very well equipped kitchen.
Our host left some details who helped us to feel at home and it always replied as soon as possible to our questions, always willing to cooperate.
Definitely, I recommend it and I will repeat if I come back to London. The only thing is that It takes almost an hour to arrive to the eastern London (Tower Brdige), because it's located in west, but anyway, it is worth staying there.
Airbnb travelllers. choose this house without any doubt! It's a safe bet.
Thanks for everything, Robin. I hope to "see" you soon.