The beginning of the adventure is a very strong start, doing a grand job of teaching you how to run circus acts and combat. What I don't like is how long it can take to come back to that. You spend a lot of time doing traditional adventuring which is good quality if you look at individual stories and encounters within a vacuum.
Overall, I think this part of the adventure feels like a bait-and-switch. You start in the adventure's premise -- a party in the circus -- and then swerve away from that to investigate a deeper mystery.
