I would wear eyeshadow to school, but it would crease horribly before midday. Then I wore this and it was incredible! it would last all day and into the night without so much as a crease. However, as summer began, I would find that I would find tiny (barely-there) creases on my eyelids when I would take my makeup off at bedtime. On the good note, my light taupe Smashbox eyeshadow would last through swim practice with this stuff on! Yet if I really want this stuff to last ALL day (and all night) during the summer, I just spray a bit of my UD De-Slick spray and it will last, no matter how much I sweat. I've never tried the UDPP during the winter, but my guess would be that it would have INSANE staying power. Oh, and I've had the tube for four months and I still have at least 1/2 the tube left. It may be expensive, but there is a ton in the tube and you only a tiny bit for each eyelid.
Overall: Great day-time staying power during the summer, creases at night if you don't apply setting spray. In the fall/winter, ALL day&night staying power.