We loved everything about our stay at Little Sugar River Farm. Prior to our arrival, Frank was responsive, flexible and accommodating. The house is perfect, cozy, architecturally interesting, clean, roomy. We especially enjoyed playing records from the large collection, picking a movie from the quality selection of VHS tapes, and sitting on the swing on the back porch. There were only two of us, but there was plenty of room for at least four more people. While there are two other buildings close to the house, it still felt private because we didn't really notice other people due to the way the house is situated. We cooked dinner and breakfast and had everything we needed.
As for activities, we borrowed Frank's bikes and took a ride to Monticello (maybe 4 miles each way). The bikes were fine for that length of trip, but if you want to go much farther, I'd consider bringing your own. We drove to New Glarus (15 mins) and visited the brewery to sample some beers on their huge patio. We also enjoyed picking fruit from the trees and bushes right outside the house.
This is a great place to get away from it all for a few days. (We only wish we could have stayed longer.) In my opinion, it's best for adults. Kids, at least young ones, may enjoy it, but may also not appreciate sitting on a porch swing the same way that adults do. But for us, it was perfect, and we hope to come back again.