+another for this sleep system!
I turned in my old ICW bag for one of these in the late 90s and spent the remainder of my enlistment acquiring bits to build my own set. $125 is a hell of a deal, especially when AAFES/CIF will charge nearly twice that for just the GorTex cover. I doubt you will ever find a more versatile sleep system for just about EVERY climate you are going to camp in.
Used mine in -17F overnight temps last deer season in northern WI while sleeping in the back of the Liberty for a week. Black and green layers with bivy unzipped, sleeping in my birthday suit because it was that warm.
even the brine from the roads was freezing to the trailer.
There is a reason you are not hearing anyone say "I like these bags... but" because they ARE that good!