I finished reading Beyond the Skies this morning. I love all of the Pantheon and how each of the 10 nations view thing or disagrees on technicalities (looking at both monotheistic nations here).
The section on Divine Favors, The World Soul, the Gods' aids and Their ranking, and the organisation was great, it brings great flavor and will help flesh out the outer world.
The appendix at the end was also pretty good, the powers presented can be fleshed out anyway we wish and are mostly tied to Pantheon or another...usually as an antagonist...or tied to Calidar proper. The Ghüle section was great too, as it gives us a glimpse of their plans and tools.
The downside...now I want more... I want to read more about the Living God's of Draconia or the Gods of Lao-Kwai, the Canisius or the Felician. Which is not such a bad downside.