Pros:
I play this course on average about 3x/week because it's the best course in the Greater Milwaukee area during the winter season. They've mixed it up compared to the past few years' layouts with new holes, pin locations and tee pads. Great usage of the terrain and elevation changes throughout the course. Having a course on a closed down golf course is always nice to play on with the good grounds keeping.
Cons:
The rubber pads tend to get a little slippery if the snow is melting or it's warm outside so make sure you where some boots with good tread.
Other Thoughts:
It'd be interesting to see a tournament where you would play the 27 holes at the winter course and the regular 18 and alternate 9 holes at the regular course.