Yes there is a Tripadvisor store and it is located inside of the Milwaukee international airport. It sells many of the overpriced items you'll find in similar stores located inside airports....

I had an extremely awkward interaction with an employee. I buy books all the time and I was reading a book for about 5min when they came up to me and said I needed to either buy the book right now...

This place is expensive. Other than that, the service is decent. Tons of magazines if you're a reader. A lot you can purchase to take on the flight

The selection is terrible, overpriced, and the drinks are warm. My sandwich was advertised as healthy, but had a very aggressive amount of mayo.