This apartment was a real gem to find in London. It was very clean and updated (it felt like it was a brand new apartment). The living room, dining, and kitchen were well stocked with everything we needed and more. There is a washing machine/dryer, which was a very nice thing to have one a long trip. All of the furniture, including the bed, were super comfortable.
Matthew was great to deal with. We gave him and his on-site manger a 20 minute heads-up on our way from the train station and the manager met us at the apartment. She provided us the code for the outer building door and the code for our door, and she walked us through the apartment. She also gave us her number and the number for 24 hour assistance, which was very reassuring.
I believe Matthew manages other apartments, but this particular one was near the Gloucester stop on the tube. The location was great - walkable to things like restaurants, grocery stores, pubs, and the wester side of Hyde Park/Kensington Gardens. The tube station was very helpful for relatively quick rides to most all London sights.
I would definitely recommend this apartment.