Finding a GF supper club can be tough in WI. Marks is a top notch restaurant, friendly staff, and amazing food (GF or not). Been awhile since I had GF battered Perch fry and fish was great. Mark even came around and talked to us a couple times. Only downside is the bar is a tad small - so if you want to have drinks, be prepared to stand or battle it out for a seat on a Friday night. Plus side is the Ole Fashions are awesome and kiddie cocktails are free after the first one.