We thoroughly enjoyed our stay at this appartment! It was spacious (we were with 4) and super clean. It is a very lively neighbourhood, even in the late hours, so it might not be good for children. A lot of facilities like a cafe, a convenience store , and train were all in walking distance (+ the centre of the city is just a short while with the tube), so that was very nice.
We visited London when there was a heat wave, but even without a fan or air conditioning it was manageable (the big balcony was especially great in the cool evenings).
All in all, great! We will definately come back if we visit London again in the future :)