The thickness of the PzG book and the 4 page Quick Ref Sheet do seem imposing at first, though the system is quite innovative.
Its a neat system and with the complexity of what it's trying to model, quite slick in terms of what it achieves. Catering for infantry, armour, HE, artillery, troop quality and command inWWII is never easy of course, and the rules do cater for every eventuality.
Resource management approach in terms of unit activation - although this is easier for better quality troops.
Armoured combat which emphasises the inherent advantages of superior tanks
Particularly bloody repercussions for moving in the open.
A nice system, which in discussion with Sgt Steiner (and Steve's recent comments over at Sound Officers' Call) make me want to try the 'Battlegroup' system as a comparison...(especially so now that I've heard about Battlegroup Northag)