We loved Diana's apartment! It's in a wonderful location, with great cafes just downstairs, a shopping centre half a block away, heaps of things to do within easy walking distance and also conveniently located an approximately 5 minute walk from two different tube stations.
The apartment itself was really cute, had plenty of space, and had all the amenities we needed. It's not as big as it looks in the pictures, but still had plenty of room for three of us. We slept one in the bedroom (although it's a double bed so could obviously sleep two), one on the couch (very comfy!) and one on the foldout bed.
We had a small problem with some damage to the foldout bed but Diana was so lovely about it and offered to fix it immediately. (It wasn't a big issue so we just told her to wait until we'd checked out.)
Highly recommend this place and would stay here again next time I'm in London!