OK, here's an extremely quick review:
What's inside the box:
- 96-page full-color book. Softback. It contains information about Messantia and sorrounding areas. Pretty good, sometimes over the top (filling an arena with water for naval battles? wtf?). It focuses on merchant and guild stuff - less slaughter, more politics. Overall: good.
- 32-page b&w book. Prestige classes, rules for running a debate, feats, spells, bestiary. I find most of the book useless. The feats are designed to be used with the debate rules, which are... well, uninspiring at best. The prestige classes are nothing to talk about, too, so that leaves us with 7 pages of bestiary and spells. Overall: sucks.
- 32-page b&w book containing an adventure. It's fast and deadly, though I think I'll remove one or two monsters. Overall: good.
- Map of Messantia. Ugly one.
- Smaller maps for the adventure. Also ugly.
- Some nice NPC cards. Nothing special but it's okay.
- Counters. Again, okay stuff, nothing to be exceptionally proud of
Overall, I'd give Messantia a 6/10. It's not bad, but far from being a must-have.