We rented an apartment for 5 days from Wimdu.com for our stay in London.
Reasons for renting apartment, much cheaper and bigger and free wifi compared to a hotel and should be quieter and cleaner than hostel. We could make breakfast and save some money. The apartment comes with a fully equipped kitchen, dining table, a double bed and a sofa bed and also a cupboard and shelves. There is a number which we could called if we encountered any problems.
We were quite satisfied with the apartment as it was spacious for 3 girls and it was quite clean except for the bathroom. It was tiny and the water supply and the temperature of the water was inconsistent.
The location of the place was fabulous, walking distance to tube and also there were cafes and supermarkets and theatres around it. Chinatown was just round the corner.
Good if you are those who do not need housekeeping.