I really liked staying with Ian, and the flat really is as good as advertised. I really liked the en-suite bathroom. The location directly opposite one of the entrances to the tube station is the definition of convenient (even though I didn't need it as I could walk everywhere from the flat), and the pret a manger next door really was the perfect start of each work day during my stay for a scientific conference. In spite of its central location, the flat is extremely quiet, due to some very good window design.
Ian really helped me a lot with all my trip planning, relieving me of much hassle. I can fully recommend Ian and his flat for anyone visiting central London.