I spent three months in Elizabeth's flat and I would highly recommend it.
The flat is very stylish, clean and tidy - it looks even better than in the pictures! It is well stocked, it offers everything you need for long or short stays. It is also very quiet, there was absolutely no noise from the other flats in the building.
The location is perfect, just a three minute walk from the Holborn tube station and one minute from several bus stops that will get you anywhere in London. Lots of shops (supermarkets, pharmacies, restaurants etc.) and sights (British Museum, Royal Courts of Justice, Lincoln's Inn, Covent Garden, the theatres in Soho..) are within easy walking distance. The area is very safe and I was comfortable walking home at any day or night time.
Elizabeth is very accommodating and takes great care of the flat and her guests. Upon arrival, she helped me with my bags and showed me around the apartment. During my stay, she was super nice and responsive whenever I had a question.
Overall, I loved staying there and I would definitely come back.