Living in Wisconsin, I have been to my share of Fish Fry's. Mark's East side has a great all you can eat Haddock fish fry on Friday nights. We went last night and we were not disappointed.
The restaurant was quite busy (always is on Fridays) but we had a table within 15 minutes and fast prompt service.
I tried the Chicken Oscar-it was very good as well. I have only been at Marks on a Friday night however my husband works near this restaurant and goes for lunch on occasion so he has tried the German food as well... He highly recommends it.