We have been coming to DuSable Harbor each year for six years. Sean has made such a difference as harbormaster. He and his team put in the effort to find a slip that will work well for us, meet us on the dock as we arrive and take good care of us during our stay. It's a challenging marina area to keep up with since it is in the middle of an urban center with lots of non-boaters passing through. His team works hard to keep it all clean and nice.