Our stay at Boutique Apartments was great! I would recommend this flat to anyone. The location was perfect for visiting Central London, located between 2 underground stations that were a quick train into town. It fit three of us comfortably for the weekend we spent there. As we flagged that there were 3 people ahead of time, the pull out couch was made into a bed with sheets prior to arrival, which was greatly appreciated by us. The kitchen is complete with modern amenities and the balcony looks onto a quiet neighborhood street (and is also an ideal place to hang out and plane spot!) The bathroom is on the smaller side, but modern and clean and didn't affect our stay at all.
I've stayed in a London flat before and this was much better than I've seen! I will definitely return should I be in London again.