It's not perfect by any stretch, but I think it's safe to say that if you like A Time of War, you'll probably like the Companion.
I'm personally drawn more to the story side of a system, and I liked how it went into more detail with how military and noble rank is seen amongst different factions. With peace breaking out post-Jihad, it seems more likely that distant realms will now have more interaction. The monsters and moving plants were also a very nice touch, which will definitely help in an exploratory type game. Finally, I enjoyed how you can now have lifepath bonuses or detriments to your xp like the way they had in 3rd edition. It's nice to have those back, even if they can be a bit game break-y for character creation.
Major noticeable downside? There's no Catgirl package for cybernetics! There's a mermaid, naga, and centaur, but sadly, no catgirl. It's not that hard to put one together yourself assuming a few liberties, but that seemed like an obvious one.
Anyway, great work! I'd say it was worth the 30 dollars I paid for it, and I'll more than likely get a lot of mileage out of it.