Birk's Gasthaus, now called Herzog Mansion, has some real pluses. There's plenty of room for decent-sized groups with lots of couples; it's conveniently located within walking distance of downtown Hermann, and the owner is very hospitable.
There is room for improvement, however. This is an old mansion, and its age shows. It's obvious the owners are putting work into making improvements. But the home is so large. It looks like an overwhelming task.
Our bed was cozy, but -- and I hesitate to sound snobby -- the sheets were not-so-great. I promise I'm not one of those bazillion thread count snobs, but the bottom sheet wouldn't stay on the bed, and the top sheet was just not soft.
Our room had only a tub. No shower. I believe some rooms have showers, but if that's important to you, make sure you mention it when booking.
Breakfast each morning was very good. That said, the dining room is somewhat institutional for a bed and breakfast. There's a lovely, formal dining room, but breakfast is served in a room with plastic table clothes. The food was great, though.
We loved the big wrap around porch. It was a lovely place to sit and have a cup of coffee in the morning. We also really loved how spacious our room was.
There are ample common areas where guests can sit and chat, play games or watch television. That was nice.
The price was similar to other bed and breakfasts in the area. All in all, definitely worth a try! Enjoy.