What's all this 'ordering books' about? Don't you guys have book stores in your city?
And yes, Iron Coffins has taken a few hits from 'experts', saying the book is full of errors.
I did find it curious when Werner simply states how he brought down a plane all by himself with his water cooled WW1 machine gun

!
Nevertheless, Iron Coffin is a great book, and even if he gets a few factual numbers wrong, he still knows what war smells and looks like and this he describes with great skill.