FYI, I always rank the expo quality low for this race because I absolutely despise going to Navy Pier for ANYTHING. However, the actual expo is fine, it's just getting to it that's horrible. On to the race...
This was the first time I started in corral A for the shuffle. The congestion difference from B to A is like night and day. I know I'm lucky to be able to experience the race from this corral but I still think BoA and the city do a fantastic job of managing 40k people. This is a fast, flat course with not a lot of turns. Perfect for a spring PR if you're game. Check out this race which seems to be most of the city's kickoff for race season.