Dan, Good review. You confirmed my suspicions about this game. I think that also a major distinction between this and Escape are the simultaneous rolling in Escape, whereas, Zombie 15 is more of "hot potato." Why that makes a difference, I'm not sure, but there seems to be something a little more streamlined and refined about Escape than with Zombie 15.
Same feeling as you. 15 min version of "ESCAPE The Curse of the Temple" with zombies. Nice components. Not impressive gameplay because the gameplay is obvious and the same.
This is pretty linear and all tiles are visible from the start. I think Escape: Zombie City is more comparable. Well, it's almost the same game as original Escape :)