I just watched it tonight, and it's great! Very professionally done, and I like the fact that it goes both into the history as well as an explanation and demonstration of various techniques involving the weapon. From a technical aspect, it's also well made, with good lighting and backdrops.
It's not really a criticism, but the only thing I found odd was that the trailer in the special features section was the only part that was in anamorphic widescreen. The rest was in widescreen, but forced into 4:3 via letterboxing (encoding the black bars). Also, the freeze-frames weren't de-interlaced, so you get very jagged double-images when it freezes on something in motion. But otherwise, the editing is very tight, the image quality is great, and the sound quality is good as well. You can see they really took the time to get it right.
You're right, the content is very accessible and informative, and can appeal to anyone with even a passing interest. The poleaxe is really an under-appreciated weapon. Popular culture focuses so much on the sword, that it's almost completely forgotten that the poleaxe was a knightly weapon used primarily between two armored knights.
I definitely will highly recommend this DVD!