£180/hr seems crazy but there aren't many really hot girls on the scene that deliver some of the services that Amber does (DT OWO)/did (CIM).
For those that like enhanced girls, Amber must be one of the best out there with huge boobs, 2 sets of lips done, booty made jucier (?), etc.
No way I'd pay £180, but supply and demand may mean she retains her regulars at that price point.