Overall impression: Eldritch Horror is a pretty solid game. I feel that it carries the theme and feel of the Lovecraft universe and streamlines the play experience to feel smoother than Arkham Horror. In the process, I feel a little depth and complexity were lost, but that's not necessarily bad. I see myself playing this for quite a while either way.
THAT BEING SAID...
...one of my favorite parts of the Arkham Horror experience was the introduction of Strange Eons, a designer program for custom-made Arkham content. What I'm curious to know is if anyone has any plans to make something similar for this game?