This popular, though not luxurious, Bavarian hotel stands in the heart of the older section. Owner Harald Herrler has maintained a nostalgic decor in the lobby. Behind his reception desk is a wall of photographs of friends or former guests, including the late Viennese chanteuse Greta Keller. As Mr. Herrler points out, when you have breakfast here, you're likely to find yourself surrounded by opera and concert artists; the hotel is close to where they perform. Rooms are small, but modern and neat.