I've only run this once and I don't do a lot of DMing, so it's quite possible that I don't have the skills to make this module shine. The concept is a nice change of pace from your standard hack-and-slash, but it takes a lot of work on the DM's part to fill in the blanks. It has everything you could want--creepy carnival, creepy clowns, creepy maze, etc., but it somehow seems less than the sum of its parts. It might actually be better to run everything but the combats theater of the mind and not try to design and draw an entire carnival on the grid. I ran it with several people I know and play with regularly who were willing to play a RP-heavy module, but it still felt like I had to railroad pretty hard to keep them moving forward. This is not something I'd want to run with a table, especially a full table, put together at the last minute with complete strangers.
[3 of 5 Stars!]