I never wear foundation, but I bring out this secret weapon on special occasions. It does make my skin look more radiant and smooths out all the little wrinkles and flaws. I use it on its own, no foundation or powder over it. My skin is a lot less oily for a longer period which is a plus, as I have very oily skin.
The formulation glides on easily and a little goes a long way. No caky feeling on the skin.
I bought mine when it was on launch so paid less than the SRP. Will definately be buying it again when my tube is done. I must say I was quite impressed.