I think I own about 10-12 Helles, and two of the Nyng, I started collecting them while working in Norway a couple of years ago, they are great blades for the money, and the sheaths are well built and practical. The Nyng is probably my favourite; light weight and fits perfectly in-hand.
As far as hard use... these are not Busse's; they have wooden handles and are of relatively thin stock, definitely not meant for batonning. They are surprisingly tough though, I've only chipped one handle, but I never baton either. If you are looking for a reasonably priced knife you can baton, go for a RAT RC-4 or RC-6, but if you want a hand ground, beautiful, well made, easy to sharpen knife (the triple laminated steel is incredible) at a great price you can't beat a Helle.
"Do not go where the path may lead, go instead where there is no path and leave a trail" R.W.Emerson