We had a lovely time in this apartment. The pictures are very accurate and give a perfect impression on what to expect. What you don't see in the pictures is the second bath room and toilet. Which is a great benefit while visiting in a party of 3 friends. There are 3 separate beds in this apartment (as you can see in the pictures) and I didn't hear any complaints about the comfort from any of us.
The greeter was spot-on time, though we were 15 minutes early. We were welcomed with a big box of chocolates, which was very nice and made us feel welcome.
The check-in process went very smoothly and everything we needed to know, was explained by the greeter.
We didn't meet Alex nor Kremena in person, but when we did call the provided contact number, we got in touch with Alex easily.
The apartment is in a very quiet neighborhood, away from the heavy traffic, but from a 10 mins walking distance to many restaurants or pubs. It's just a 2 mins walk to the nearest "Cycles" rental stands, which can take you across the city by bike for just 2 pounds a day, if you plan your trip carefully. 10 mins walk to Pimlico underground station, and about 15 mins to Victoria station.
We loved our stay in this apartment and cannot find ANY reason to book a hotel ever again while we stay in London, if you can get this for more or less the same price!
Do not doubt and just book.