I am originally from California. I lived in Switzerland for four years and am currently living in Frankfurt, Germany.
Amanda and her friends stayed with us over New Years, but we never got the chance to meet them. But they were friendly, and neat for the most part. The only issue we had was coming back to the apt to find they had left the heater on all weekend, even after we asked them to be careful as it's very expensive and the humidity condenses and sometimes drips. But they remembered to take the garbage out with them, which was nice! Thank you!