I've been here twice so far this summer.
There are a few things I like about this place:
-Many choices of vendors to buy food from during the lunch hour and several are well known like Gushi, Momofuku Noodle Bar, Eva's Original Chimneys etc.
-Easily accessible since it's right by Union Station
-Live music that's actually really good
-Alcohol is sold here
-Decent portion sizes at some food stalls
Cons:
-Some places overcharge for their food like $16 for duck confit pierogies which were literally 8 small pierogies with a very salty small duck leg on top at the Loaded Pierogi stall
-Narrow space between the back food stalls and some sitting areas, which is a lot more noticeable when it's crowded during the lunch hour
- I have yet to be blown away by any of the food at these food stalls. So far, I've tried the beef brisket sammie at the Carbon Bar, duck confit pierogies at Loaded Pierogi, double down beef bacon patties sammie at Patois, Eva's Original Chimney Cones (the one with the brownie chunks and toffee bits) - all were just okay...but Death by Venice's lemon ricotta rosemary gelato was surprising really good!
This summer market is worth going to once though (it's summer after all!) if you don't work or hang out in the area.