I picked this up yesterday because I knew I'd like it from the way the graphics were done and the conceptual alternative reality fantasy/WWII storyline.
I was not disappointed.
This is a very unique game. It is also a very Japanese game. I bet a lot of people picked it up and immediately went "WTF is going on here?" You have to give it a couple of hours before you actually get to the real gameplay (picking squads, assigning units, weapon R&D, and using specific units in engagements) to get a feel for it, but I bet a lot of folks who like tactical games, but also like turn based military games will enjoy this game. It isn't Final Fantasy Tactics, but that is probably the closest game I've played like this.
The biggest let down is the linear storyline. There is literally no control over choices or anything that happens plotwise (at least as much as I've played). If they had included a Fable-like alignment system, this game would be sold out everywhere. But as it stands, I really like that it is not like any other game I've played.
Anyway, it is worth a rental to just about anyone, and probably worth buying once the price drops for Christmas or Thanksgiving if you've got a PS3 and are a big RTS/TBS military person. Or you can be a freak like me and pay $60 right now.