Yes, I do feel like a Michelin man, but toasty warm. I compared this to two other synthetic jackets (REI and Marmot) and also to the sub zero jacket and TNF Nuptse. It has length, really light weight, and heated me up immediately. It could use another inside pocket (for stowing batteries and other stuff you need to keep warm at cold high elevations), but it should work well for winter mountaineering.
I tried both the jacket and the parka. Both were warm, but I did not keep the jacket because it was too short in the rear. The green jacket color was great, but I eventually settled for a dark blue sub zero parka. I think it will fit my needs for winter mountaineering.