The full link to StufferShack's review can be found here: http://stuffershack.com/soldiers-of-fortune-a-review/
Here's the final summary from that article:
The Good: The Player Powers and Paragon Paths were big hits, as well as the idea of Siege Engines, even if they didnít get much play yet. The templates and skill challenges were the best tools for me, the DM, and I donít normally like templates. All of the crunch is easily transferable out of Midgard.
The Bad: I would be very happy to see this get another round of editing for a new pdf. There are just too many problems with the stat blocks for powers and monsters. In addition, I did not find much value in the Midgard Stratagem section.
The Meh: Thereís a lot of fluff about Midgard in here. Itís interesting stuff, but until I have the Midgard Campaign Setting, which is going to take a little while, this is downgraded to being maybe stealable in bits and pieces.
Overall: This book gets a solid B+. Most of the things I had problems with were annoyances more than issues, and had easy fixes. A great bit of it is instantly useful in a fun and engaging way. My players liked it enough to do more work, which is saying a ton for the quality of the material. This will positively see good use in my campaign.
Soldiers of Fortune (4E, PDF)
Date Added: 02/15/2011 by Brian Liberge