Shaun's place was even bigger and better than the pictures! I only had my sister traveling with me, but this place could've slept 5 very comfortably (2 in the queen bed, a good sized day bed and additional pull out bed, plus the couch..which may even pull out into a bed, not sure). Very clean. This was an apartment I wish I could live in full time.
The location was perfect. 1 block south of Piccadilly Circus, but juuust off the main road on Jermyn street so it wasn't at all loud. 2 minute walk to Regent street, 10 minute walk (and a beautiful walk it was) to Hyde Park, and 15 minute walk to Buckingham Palace, Big Ben, and Westminster Abbey.
Traveler's tip: take Uber to and from the airport. I called an Uber when we arrived, but got frustrated because it was taking a while to arrive (or even move). After 3 or 4 had the same issue, I abandoned Uber and got a Taxi. When we were leaving the apartment, we took an Uber to the airport. Taxi was 84 Euro (before tip) and the Uber was 24 Euro.
I was only at Shaun's place for two nights, but the central location helped me see everything in one day (including the Tower of London/Tower Bridge) which were a short bus ride away. It was an amazing trip and would have no hesitation staying there again.