If I have to describe Rachel's apartment in few words, it's "Perfect location". The apartment is perfectly situated in terms of great neighborhood with lots of interesting things to see and visit, rich choice of delicious food from around the world and close to all major points of interest in London (and if not close, with great travel options like public transport and walking alternatives). You shouldn't worry about food, coffee and grocery stores as there are great choices in walking distance - delicious Turkish restaurant, 24/7 bagel shop, all sorts of grocery stores with great selection of goods, great coffee shops, and all this at affordable prices.
The apartment is also spacious (enough place for everyone with two bathrooms, big kitchen and a living room) and has a lovely small garden which can be enjoyed even in rainy weather. It has everything necessary to prepare a meal and rest after a day of touring around the city.
What would have made the apartment even better is substitute some of the amenities with newer, check the essentials like soap, shower gel, spices, etc., change them if needed and just double check whether the place is clean.
But all these can't change my opinion that I like Rachel's place and would love to stay at it again if I have the chance.