http://www.theeroticreview.com/discussion_boards/viewmsg.asp?BoardID=33&MessageID=17545

providers use the term to mean "first class", that is to say, an upscale provider.

In some cases it means she'll be in a nice four or five star hotel and will be really dolled up.

In other cases it might mean she'll shower between clients.

There's really no set definition.

As Mr. Fisher correctly pointed out, the acronym can refer to many different things. However, I find that providers who say they give "A" Level services or provide "PSE" (porn star experiences) sessions, really only use these statements as a way of charging more. Realize that this is a business and its all about marketing.

There are PLENTY of great ladies who will give you everything you dreamed was possible, at a great price, without having to classify themselves as "A" Level providers.

every time I see a site that equates A-Level with top class, or 5 star service, it goes back to a certain free escort website template, designed by some non-native-English speakers, who put together a laundry list of escort services (BTW, A-Level isn't the only one they got wrong).

For 99% of the web, A-Level means anal.

I've only ever considered it to mean anal sex.

I've certainly never heard of it meaning a high class experience.