I just finished running "The Thing in the Chimney" (the first of two adventures in this excellent product) as a Judge. Honestly among the most fun I've ever had in a fantasy RPG session and I've been playing for more than 30 years! It's a silly, but challenging, thematic romp. It's listed as "Suitable for 16 1st level characters, 6-8 2nd level characters, 3-6 3rd level characters, or 1-2 4th level characters." This seems perfectly accurate. It would probably also be an excellent 0-level character funnel with a few tweaks. I won't say anything more, for fear of spoiling the humor of this module, but you should buy it now, even if just to read and enjoy.
[5 of 5 Stars!]