This miniature Urban Decay Primer Potion (otherwise known as UDPP) came with the Naked Palette kit. I finished it on my recent business trip to Sydney. I loved this product but have now moved onto a tube of Too Faced Shadow Insurance.
The UDPP works beautifully and feels silky, almost silicone based when applied. It certainly extends the wear of my eyeshadow. However, in my opinion it does not cover my yellowness and red veins well enough, and I sometimes still revert to MAC's Painterly Paint Pot for full coverage.
I am undecided on whether I will buy this primer again. I have so many still to try!