My Ghost Whisperer just arrived today, the day after I ordered it, so I've only had it a short period of time and have only been outside in it once. But, what I can already tell is that this is soon to be one of my favorite jackets. Extremely lightweight, packable into its own pocket that zips shut with a clip loop, awesome color combination (I went for the peat moss) and it is cut perfectly with just enough shaping. I naturally run hot and tend to heat up really fast so the Ghost Whisperer with a couple good base layers will more than likely be just the ticket for our snowshoe treks and other outdoor Winter activities in our big, beautiful Utah backyard in the Wasatch Range.
As far as sizing, I purchased the large. I'm just under 6'1" and 200 lbs. (I think it's the beer). The sizing is pretty much perfect for me, but feels like it could have another 1/2 inch of room under the armpits. Not too tight as is, but for much layering, a bit more room would probably be handy.