If I have any problem with Journeys, it's that it's not a particularly deep or rewarding tactical RPG to play. The skills trees are necessarily far simpler than the finished games, which means that character development is quite limited. Another strength of tactical RPG is the often gigantic characters pools, which makes it easy to build large, diverse and interesting teams. That component seems to be lacking in Dragon Age Journeys, which means that it doesn't really benefit from one of the genre's greatest strengths.
What this all means, basically, is that Dragon Age Journeys is a neat promotional tool that's designed to give players a taste of Dragon Age Origins. It was never meant to offer a deep or meaningful playing experience. For BioWare fans anxiously awaiting November 3, Journeys makes for a decent appetizer. Just don't expect that appetizer to be a tasty tactical RPG.