I already had a pair of the matching M70 pants, so I decided I would get the full fit and pick up one of these guys. Turns out that, as ridiculous as the pants were, the parka is even moreso! After a few weeks of having work it, I'm still finding mysterious straps, buttons, and other assorted bells & whistles that I'm never going to know the purpose of. I also have yet to use even a fraction of the pocket space it makes a available - and I've gone out of my way to try.
As for how comfortable it is, it's about what I expected. It's a heavy jacket that doesn't do all that much to keep you warm, which makes sense considering this thing was meant to be worn while riding a bike. I do like the elastic bands around the wrists and waist though, and it goes a long way in making the parka feel nice and fitted in a way that my M65's velcro doesn't.
Overall, this thing goes hard; especially in tandem with the M70 pants, I find myself staring into a mirror whenever the opportunity presents itself just because the outfit looks so good. Easily worth every penny I paid.