According to field manuals, it is designed to be used inside of a poncho to make an expedient sleeping bag. This works well down to the 40-50° range with a jacket, but they don't breathe very well.
I tried the PLUQ a couple of nights when the weather was far colder than forecast and could be reasonably expected. Granted, it wasn't the fancy kind made here, but it was a solution that kept me from going hypothermic. I wasn't comfortable though.
They are relatively cheap, which is the benefit. A PL costs about $22 and a down UQ costs about $190. My UQ compresses slightly more than a PL, but my UQ is lighter and much warmer. I've kept a PL in every car and taken one with me on almost every camping trip for the past 18 years. But, I'll pass on the PLUQ and use it as a TQ instead.
Last edited by Trooper; 02-11-2013 at 20:19..