I have only mustered in a 206 and don't have too much experience with it. As in how 'low' is low? Well when you bomb some cattle, you might be at 30 feet or something, uncomfortable at first but you soon get used to it. One great tip I learnt was when flying low, always trim back more than required so your having to apply fwd pressure on yoke to stop it climbing. Then if the **** hits the fan, let go and it flies away out of strife. As with the 172 argument, never mustered in one, but the few times I've booted it in the 206 to bail out of a dangerous situation, being 'mildly' thrown back in the seat sure does remind you that its good to have that extra grunt. And the one I flew was dosile as in a stall = no wing drop which is always nice!
BR