Carnival of the Damned is a must own adventure.
It is as simple as that. As a funnel it is exceedingly adaptable in that it can be trimmed down and plays quickly or fully played and give many hours of gameplay. By many hours I mean easily 9+ hours.
What most impressed me about this funnel was the fact that there is actually a story sown within it that the players can discover. The main enemy starts out as a big bad but as the adventure runs the players slowly become sympathetic to the enemy. To be honest, it is a little like Game of Thrones in this regard.
That being said, it has a good number of magic items that aren't unbalanced in power but give the players plenty of opportunity to discover (and lose) neat magic items. The claw machine alone entertained my players for a good 30-45 minutes.
The PDF even includes some neat miniatures for those who use them.
Overall this is currently in my top five picks for funnels and I love running it. Very recommended.
[5 of 5 Stars!]