I think that the AS350 with the floor window is one of the most comfortable platforms for Vertical reference work. I admit when I first started out I hated that window and thaught I would never get a handle on it, but after a few hundred hours and the odd scare I think I can swing with the best of them. I have to say for production line work it is probably my favourite. Nothing like a nice warm cabin on a -30 day. No back ache and room to move. I guess it comes down to "each to thier own" but for me its 130ft all the way.