Katie of Kentish Town Road (Hungarian, probably late 40s) is excellent and a very nice woman. Not necessarily the prettiest (pic on her website) but she gives a really good erotic B2B and has first class cock-handling skills. There isn't a working bell there (or wasn't when I was last there about a year ago), so be sure to take your punting phone to call her to be let in, if you go. Availability not always the easiest but she does in my experience respond to calls and texts efficiently.
External Link/Members OnlyNot as well known as she deserves to be by those who appreciate the older, skilled provider.