I stayed here in late April with three other women as part of a girls weekend, and we had a great time.
The B & B is on the edge of town, but since the community boasts only 2,000 people, it's not a long walk, and there is a trolley service that will pick you up right at the end of the driveway.
As other reviewers mention, the first floor of the house is a spa -- there are massage rooms, a little office space, and a reception area. Guests have total run of the house after the spa closes in the evening.
Upstairs, there are two bedrooms and an expanded bathroom.
The bedrooms are lovely, but I don't think they would hold more than 6 people, maybe 7, comfortably. (I think it advertises that it sleeps 8.) In one large bedroom, there is a queen size bed, and a twin daybed with a twin trundle beneath. In the other large bedroom, there is a queen size bed and a futon. The futon would be awfully cozy for two who weren't a couple.
There are televisions in the bedrooms, and we found a stash of board games, popcorn and movies. However, there really isn't a good common area -- like a dining or living area space where guests can relax together.
Breakfast isn't actually served on the premises, but April will ask if you'd like to have it brought in, go to "Kate's" or the restaurant next door. Without fail, your answer should be "Kate's," which isn't really "Kate's." It's a lovely Bed and Breakfast a few miles away (you'll need a car) called Alpenhorn. Kate is the proprietor and the two meals we ate there as part of the package at Serenity absolutely made the trip. The food she serves is really, really something special. In fact, I feel a little guilty saying this, because I truly did enjoy Serenity, we booked a second trip to Hermann as we ate breakfast at Kate's one morning. We'll be staying at Alpenhorn on our next pass through.
The massage was one of the best I've ever had. They really do it up right, and members of our group booked massage services at Serenity for the next time we visit Hermann.
Our weekend package included pampering for all four guests, but our services were spread over two days. This made it tricky to tour the lovely town of Hermann and all of the wineries. We would've preferred getting our spa treatments all on the same day. We were also unprepared for male guests arriving at the spa while we were all sitting around in our robes. Just remember, it is a business, and while you will have the run of the house in the evenings, don't get too comfortable during the day!
Also, after we booked, they called our contact person (poor girl) several times to inquire about where we wanted to have breakfast and all sorts of other odds and ends. It was very stressful for her. She would've preferred to have everything just set up as part of the package rather than so many choices and phone calls. (I wasn't the contact person, so I can't really say, but she was upset about the number of phone calls she received.)
We also never picked up the chocolates that came with the package. I know the idea is to get us into the chocolate store, but if chocolates come with the package, they should be provided on site rather than giving out a coupon.
We loved Hermann, Mo., and as I said earlier we will be back. We're all very excited to take our husbands. It's an absolutely charming town. The wineries (we only made it to four of the dozen or so) were wonderful and delicious. And the people, for the most part, were warm and friendly.
If you go, I would probably recommend a more traditional bed and breakfast. Serenity is pleasant enough, but it just fell a little short of what we hoped for.