We had a very nice stay at Joanna & Steve's place. The room and bathroom look exactly as in the pictures, they are very clean and equipped with everything you need. The access to the city center is very easy and pretty fast by train (35-50 minutes, depending on the final station). The train station is very close to the house, maximum 5 minutes walk in a very nice neighbourhood.
For sure, we'll choose again this beautiful accomodation for our next staying in London.