H King

Very well run surgery in a converted church on a quiet street within easy walking distance from either Gloucester Road or High Street Kensington Underground Station.
For the few occassions I need to see my GP, I can book an appointment reasonably quickly and can usually get the first appointment at 8:30am. When you enter, there is a touch screen computer on the desk where you book yourself as having arrived, and then there is an electronic board that will let you know when you are ready to see the doctor, and which room to go.
The only downside is that you never see the same doctor more than twice, they change often!