I was there in the days before the bilateral agreement and it was a heck of a job arranging the paperwork to the point that I even had to get a good conduct note from the UK police (I await the jokes with baited breath). Hopefully things have improved.
My local Italian in Oerlikon was run by a bunch of Indians and 24hrs notice was enough to guarantee a curry-fest for all the Brits. Talking of Oerlikon, there's a restaurant in Zurich that has an anti-aircraft gun on a platform above the door. Beats a cuckoo clock I suppose
Hopefully I'll manage a trip back to CH later this year ... yippeeee