Superb stay. Flat was excellently located, near a train station but even closer to a bus station with a direct route into town. Flat was very clean and nicely finished, with a big comfy bed and a really powerful shower with plenty of hot water.
Best thing by far was the early check in and late check out times, really allows you to make the most out of the first and last days of the trip. Overall we were both really happy with the stay and will definitely be coming back if it's available next time we're in London.