Hey.
So, "high class" in the context of escort services usually means that you not only book an escort for certain hours, but also expect a very special experience. The ladies (and also gentlemen) are often not only beautiful as a picture, but also cultured, educated and can move on many social levels. In other words, they are the perfect companion for exclusive events, dinners or even trips.
If you're looking for a really good recommendation, check out
High Class Escort Zurich. Heard from some friends that they had super experiences with this agency. The agency attaches great importance to discretion, professionalism and of course quality, so exactly what you expect from a real "high class" service!
Hope this helps you! Have fun and enjoy the experience! ;)