The easyHotel South Kensington (damn you, annoying lower-cased brand names) is not close to the shops we adore at Kensington and Hight Street.
In fact, it's a ways off (about 15 minutes) and we say only attempt the walk when the weather's nice in London.
We actually had a chance to go by this hotel and while rooms are cheap at 25 GBP a night, this is still a budget hotel and rooms are notoriously small.
However, the easyHotel gets pretty solid reviews on TripAdvisor. It seems most guests know what they are in for before they arrive.
A few tips: Guests said that rooms with windows are smaller than the ones without. Internet is £5 an hour and watching the telly will cost you another £10 a day. If you want housekeeping, that's £10 per room and extra towels are £1 a piece. So we really wouldn't recommend booking this place for more than two nights.
On the other hand, skimping on the hotel room does leave you more money for shopping in Kensington.
Finding somewhere to stay in London that has both a clean room and a price that doesn't totally blow your budget is quite a challenge. Coming in at #1 last year on the TripAdvisor rankings, and still doing well precisely because it doesn't cost a fortune, the ParkCity London is a recommended spot to crash in London.
No recent guest has a single bad word to say about the ParkCity, and the price speaks for itself: it's common to get a special web rate of 99 pounds ($200), even in summer, and that's really reasonable for a decent hotel in central London. Not only that, the ParkCity is a ten-minute walk from the Earl's Court underground stop, the rooms aren't tiny, the staff are helpful and it's quiet, despite its central location. There's not much more you can ask for in London, unless you have much deeper pockets.