CHEAPexcept a free room at Rudi's, there is no cheap overnight-place in costly Switzerland. Even Backpackers, Youth-hotels, etc, will charge you above SFr 100 ($65).
Out of town B&B is much cheaper than in town or around the airport..
SAFEany place in Switzerland is safe, may be except Rudi's (but even baobab survived there).
CLEANany place in Switzerland is clean, may be except Rudi's when Gisela is away.