Speaking of impressions, mine are that the German likes a very hard temper that will not stand for much abuse - they wouldn't think of it to begin with - but will hold an edge for a long time, all good and well, but when it finally does come time for inevitable sharpening, whether a real grind to get out damage, for example, or a honing to freshen up the edge, it is a serious matter and takes much work. So, if I had a thing or two to say about German axes, in the broadest sense of that characterization, it would be that. Once you get to it, maybe you will take note and pass on what you think regarding sharpening this axe.