Stayed at Piers's place for six days, and loved his place:
1)	Location. It is convenient to walk everywhere within 30 minutes, and you will love London by walking.
2)	Communication. Piers is very responsible and quick in communication.
3)	Well equipped apartment. The apartment has provided almost everything you may need.
The only minus side: the place is not too big, it is good for two persons only.
We love Piers place, and want to go back during our next visit.