The Doom of Listonshire 4/5
The adventure takes place mainly in the wilderness: forests, lakeshores, caverns, haunted hamlets and ruins. That's what I like, especially when I'm playing ranger or druid character.
Main theme of the adventure is a searching for classical three pieces of map / talisman / put-what-you-need; in this case the PCs are looking for missing (in monsters' ambush) little princess (rightful successor to the throne), her faithful maid-in-waiting, and her magical ring.
The PC must explore three of twelve described adventure sites to win, but there are a lot of hooks leading to other sites. They can explore the sites in unlimited order, you (as the DM) can even determine randomly where lady-in-waiting and ring are.
The adventure is good mix of tracking, fighting, roleplaying, dungeon crawling, sneaking, and mystery-solving (simple detective work). A mood of the adventure resembles Baldur's Gate 1 crpg (a lot of small subquests in the wild).
My favorite part is "The Abandoned Village" containing very creative use of "animated objects" in horror mood (I'm seroius).
From the other side, I don't like "The Ruins of Old Liston Keep" mini-dungeon, because there are nearly twenty identical rooms containing identic foes - everyone of them so stupid to wait for the PC instead of attacking in large group. And there is a great hall smaller than my toilet.
What I'll add to the adventure?
1. A description of the place where the monsters ambushed the duke. It's natural to begin in this place, so I don't understand why there is no word about it.
2. Sidekick of main enemy is some tracker-killer. The PCs hear about him a lot of times, but I think he can be "more recurring villain" than single ambush leader. I mean a duo like Emperor and Vader.
From editorial point of view I love that Ari Marmell has used so many monsters from Necromancer Games "Tome of Horrors" - it's good to see new bad guys even if you are experienced player (as my players are). You (as the DM) can find all statblock needed to run the adventure in DoL. That's a shame, the statblocks are in old format "AC23fgdgjhp34dffgFort23iuelf".
I like new magic items and new monsters from DoL.
So, I recommed this adventure for everyone who don't like dungeon crawl (tactical or kick in the door) games only.