OK, is this in ADDITION to Panzer Tracts, in lieue of PT, or something entirely repetitive of what's in PT? Even if that last, it could be helpful to have everything in one easy-to-use reference source. If that's the case, I would be interested, since I have the G PT but need something for the two Takom As I have in my stash.

My experience with other books of theirs is that it will make a solid introductory resource with a modicum of depth. However, no component will be better than what we currently have that focuses on one aspect. SO one will get far more visual information from Panzer Tracts, Jentz, etc, there will be far better history and technical areas in the big HB Osprey books on the Panther and so on. If you have no references this would be a good all in one starter book. If you have the various references already published it would be redundant (again, based on their previous formula and not because I've read their Panther book!).

Bill, I agree with Matt. Apparently its AFV books get good reception, like the Tiger I Here's a review on the T-34 book by the same author: T-34 Tank Manual

If this is anything like the Tiger I book I'll be picking up a copy in the near future!