Our family enjoyed a comfortable and happy stay at Bob's place. The neighborhood was safe and well located near plenty of public transportation, museums, parks, and restaurants/shops.
The apartment really met our needs:
washer and dryer on site,
electric tea kettle,
several closets large enough to stow luggage kitchen with a microwave and dishwasher
Iron and ironing board, laundry baskets
Empty dresser for unpacking
There were many helpful touches, including a coat rack so our scarves and hats had a place; two large umbrellas, lots of extra bath towels, London guide books, and Bob had helpfully supplied a fresh container of milk, sparkling water, fruit, and chocolates to welcome us.
Bob was prompt in all communication, and we were impressed with his professionalism and kindness. Bob supplied a helpful list of local restaurant favorites and information on attractions in the area. He also took the time to give us a brief tour the neighborhood and helped orient us on the direction of Hyde Park, the Natural History Museum, etc.
We look forward to staying in Knightsbridge again!