First of all I would like to thank Alfonso for all his help during our stay at his flat both before we got to London as well as during our stay. The flat was exactly as shown in the pictures, very clean and comfortable and quite spacious. The bathroom is quite spacious and the kitchen has got all the essentials. Location wise the flat is very close to London central touristy places, a bus ride from Oxford Circus, High Street Kensington, Hyde park/Marble Arch etc. Apart from the frequent buses, there are 3 tube stations within short walking distance that can take you to important sights in London.
I highly recommend Alfonso's flat for a stay in London. :-)