EuroATC,
I appreciate your comments, but one should probably differentiate a little:
As for the "very expensive" bit, one has to know that health insurance premiums and taxes are considerably higher in Geneva than in Zurich.
The positions advertised are for Zurich TWR/APP.
There are Germans, Swedes, Danes, Slovenians and South Africans working in Zurich, some of them for many years already.
It is very busy, but that's what makes it interesting, too.
As an ATCO, giving up your position to go somewhere else, doing SIM and OJT again, is a very brave move, also not knowing what really to expect (and believe me I know what I'm talking about!).
It can be a very good experience, but it can also be very sobering.
The catch is, that you only really know how it is once you are working there.