Went here for the yearly walking tour and had a really pleasant experience.
The sunflowers were gorgeous. The views would only be better if nobody was allowed to build houses nearby. It's a great place to learn about Wisconsin's interesting geological history (it's right at the terminal moraine from the ice age), the Native Americans that lived here and the German settlers of the 1800s as well as about farming and the Pope family's great love of the land. If you come just to walk around, there are informational signs around to read.
This would be a great place to take a walk or have a picnic on a sunny day!