Love this primer! It seriously diminished the appearance of my pores and made all my makeup apply much smoother. My makeup is in place and shine free all day, right up until night when I take it off. In my opinion it is a dupe for Benefit's The Porefessional, the list of ingredients is very similar and the texture and appearance on your face is almost identical at a third of the cost.
I'm going to give this a 4, because it did break me out, but I'm sensitive to silicones. And before it did this it went on beautifully! Really made my skin feel like satin! Now if I could just find something that does that, that I'm not sensitive to :/