Some employees were British, but also people from other countries. I guess the guests are international, so it does not really matter if they cannot speak German, and of course there would always be someone close by who can.

I heard that they are doing some building work at the moment, but did not notice it or see anything.

We saw one celebrity (designer), but except from this, a good mix of age groups and all kinds of people. Well, maybe slightly "cooler and younger" than some other places (so I fit in nicely ). We did not go to the restaurant or bars except breakfast, though, so not much time to study others.