We really loved our stay at Peta's.
The place is very clean and organized and the bathroom has everything you're gonna need for a couple of days (the earplugs were a lifesaver... Can't sleep without wearing it and you can imagine my surprise when I found them in the bathroom).
The breakfast was also a real nice touch.
The location is good, just a few minutes away from restaurants and from the underground station.
We're definitely staying there again when I get back to London.