How reliable are the "Fox girls" in Vancouver?  No guarantees ever I realize, but can one count on usually having a good experience?

In general, yes. However, it's best to describe the type of girl and experience you're looking for to the lovely ladies on the phone and they can "point" you in a particular direction. The more popular ones are reviewed here which helps too.

Here is the link, to their web site.  Large assortment of very hot looking ladies.  Well respected, in Vancouver area.  I've not used them, they have a good 'rep'.