A decent introductory adventure, as far as things go. Most of it is pretty classic stuff -- you've got most of your traditional low-level footsoldier-type monsters here (kobolds, goblinoids, skeletons/zombies). You have some oozes as well -- the cube is always a good way to freak out new players and introduce them to a classic monster type at the same time. The Keegan subplot is a nice touch -- especially if you make Aecris important in future adventures. Although some of the encounters leave things to be desired, the final encounter if played right can be a perfect climax.

But the best part of the module is that it has multiple poster maps, a few of which are generic enough to come in useful in many future adventures. I can't count the number of times I used the "on the road" map -- proof that a poster map doesn't have to be designed for a flashy encounter to provide value.

If you play 4e, and have a new or relatively new party, I recommend playing the adventure. I wouldn't consider it great conversion fodder if you play another edition, but the maps are nice anywhere if you're picking up a hard copy.