I have played there, but it has been quite a while.
At some point in the 90s, I believe there was some work done on the course. I have no idea who did the work.
It is quite short. I don't really remember much about the green complexes. I do remember that it is a fun course.
If you are in Mankato, it is worth playing. If you are even in the Twin Cities (80 minutes away), there are better options.