| Mayfair Mall in Wauwatosa, Wisconsin has its nursing mothers room located on the second floor near the food court.
The room accomodates mom, and the door is wide enough for a one baby stroller (not the double-sided twin babies type unfortunately).
There's a comfortable chair, baby changing station, and the door is lockable, which means you have to wait your turn while it's occupied by one mom.
Helpful note from nursing mom Jill Rothenbueler Maher about other nursing spots in this mall:
"One particularly memorable feeding during my 11 months of nursing was at Mayfair Mall. I didn’t plan to be shopping long enough to need to feed our daughter, but there I was. I had never been to a mall with another nursing mom and had no idea where to find a comfortable spot. In the preparatory class, we were encouraged with a poem about “nursing anywhere,” but I didn’t know what would be appropriate and relaxing. I considered taking our daughter out to the car, which I knew would be a squish for my tall frame, but decided to first ask at the customer service station. I was a little hesitant to walk up to a stranger and refer to my breasts, however obliquely. The man directed me to a department store’s lounge, which worked out well." | 
