i have been wearing this stuff every day for the past week, and it is amazing. everyone go try it NOW! this stuff lasts >12 hours on me--even through naps--without fading at all.
i've never been a huge fan of udpp (even though ud is one of my favorite brands), and i normally use mac paint in bare canvas or mac shadestick in beige-ing when i want a nude base.
but the mac stuff is still a little bit visible (beige-ing is really shimmery, too), and the tf stuff is very light and invisible and doesn't change the shadow you're putting on at all. it does make pigment stand out like you're looking at the pan. GREAT! i like the packaging, too, which is a simple squeeze tube with a screw cap.
i use only about 1/3 a rice grain-sized amount per eyelid, and it works fantastic. this tube is gonna last quite a while.