I don't know how I'm the last person to hear about this, but apparently I am. After reading about the MAC Blot Powder/Pressed being used on the set of the Sex and The City Movie, Twilight, etc, I decided to try it out for myself....and WOW. Normally, I'll cake on more powder in the early afternoon to try to get rid of the shine, but it ends up streaking and looking like I did my make up in the dark. Not anymore.
Now I pat in on and I'm good to go. I've also been using it as a finishing powder over foundation at night. Basically, I'm having a love affair with this product. A warning: it's so sheer that I use the Medium Dark color; I'm normally as light as it gets! Don't go too light or it looks chalky.