What do I Look for in an adventure module?
1 Classic Theme
2 Attractive Cover/Title
3 Friends Recommend it
What does that mean?
1 Classic Theme ... Some classic fantasy story. Giants, Dragons, Vampires, etc.
2 Attractive Cover/Title ... a Title and/or cover art that relates to #1.
3 Friends recommend it. Either online evals, word of mouth, or maybe its based on or loosely taken off of historic modules.
OK, those are what gain my initial attention.
Once I actually start reading the module, I'm looking for a solid story and plot. I really don't care if there are combats. I don't have any interest in new monsters or creative templates. But I really really want STORY and NPC characterizations.