I just received my Enigma 30* a few days ago. Being a fellow Minnesotan, I'm sure you understand why I haven't field tested it yet!
I went with a quilt because of hip pain. Lying prone on my back in a mummy for extended periods is painful. The footbox in my Enigma is roomy enough that I can bend one knee off to the side comfortably and long enough to still basically remain in the footbox.
If I lie flat on my back fully stretched out, without over stretching he quilt, the top comes right to my nose. It's about mid chin after I wiggle around a bit and the fabric relaxes. The wide width is vey wide. I end up on my side a lot and also plan on layering with a puffy and I think the sizing is perfect.
The only annoyance, if you can call it that, is when on my back with the bag up to my nose as mentioned, the cordlock is right there and the cord is right there in my face. Kind of tickling my nose and whiskers. It's better than if the lockers were at the ends of the bag and underneath though, so not sure there is much to do about it. I'm just nitpicking to find some feedback to offer is all I guess.
So in summary: Yup, fits like a glove! :)
Edit: I don't want to imply that it's too long, because when the neck cord is cinched up, there's still enough room to keep it just off my shoulders. Any shorter and I think it would start to tug and pull at the seams. There's none of that now. I'm about 160 lbs.