My family and I stayed for 2 nights at John's place. The place is a convenient base for exploring London. Attractions such as Westminster Abbey, Big Ben and London Eye are within 10-20 minutes of walking.
I love the fact that it is located right in the centre of London and that one of the hop-on hop-off bus tour has a stop nearby the place (Horseferry Road). This made it easier for us to go around without spending a fortune on the transportation.
Also, various restaurants and little shops are reachable within minutes. That was really handy as we mostly cooked our meals instead of eating out. The place was easy to find but due to us arriving at night, we actually walked past the place. Thank goodness for John! Although we were late, he waited for my family and I and gave us a brief description about the place. John lives nearby as well which makes it easier if we should encounter any problems. Overall, I would really recommend this place! If I should ever return to London, I would not hesitate to stay here again.