It's good to -40 if it's in new condition. The down degrades (bunches) over time. The liner is crap and should be replaced with anything (its always good to have a liner tho) and it fits fairly large people comfortably to 6'2 IIRC. It's a bit big compared to the stuff available nowadays but not massive and compresses more that the issued stuff sack allows.
I'll give you a weight in a bit.
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