Ive been fiddling around with the demo and as a longtime fan of the Total War series i find Scourge of War Gettysburg to be better in terms of an overall strategy/tactical/realism wargaming experience.
The gameplay is quite good, and altho the maps are 3-D the units themselves are sprites...so dont expect top notch graphics. http://www.scourgeofwar.com/index.shtml