Stayed here for a night before a meeting at St George's hospital nearby, and would recommend Flexistay Aparthotel as a cheap, convenient and comfortable place to stay. Decor is reasonably maintained, and the self-service (shared) kitchen is well stocked with food and drinks available day or night.
Staff are friendly, and I'd recommend this place.
NB: Easy to walk straight past (as I did) - it looks like (indeed is...) a 'normal' house.
- Free Wifi