I bought a mini, that I'm having a hard time using up. I've tried quite a few setting powders (and keep going back to MAC Prep + Prime). I don't really like it under my eyes because it's too chunky, and I don't like it for my face because when I use it over liquid foundation, I want a silky finish, and this leaves my skin kinda damp - as if I hadn't applied powder. Generally, the powder is a little lumpy - a little like cocoa powder acts. It also acts like if it was damp when I use my brush over a few days without washing it - it clumps up on it (maybe this is meant to be used with a puff or sponge?). The texture makes it a little hard to distribute, compared to some of my other powders. I don't like that it gives a little bit of color either. I'm not dark - about NC25, but it lightens my foundation. My last complain is: it doesn't set my makeup well. I tested this in California, for about 2 months. From something named "Lock it", I would expect some really good setting properties, but this actually makes my undereyes crease and seems to clump together on my skin during the day, taking my foundation with it.
Overall, the only thing I like about it is the packaging. I have many other things: NYX, Hard Candy, Ulta (NOT the mineral setting powder) and other, much cheaper powders that perform better than this. Another powder that is very similar to this is the CoverFX Perfect Setting Powder. I don't like that one either, but if someone likes the Kat Von D one, but the color doesn't work for their skin, CoverFX have different colors available.