I own this, and like it as lot. I am an NW20 and sometimes use the "contouring" shade like I would a bronzer - to give my face a bit of warmth. This shade also works well with the light (non-shimmer) shade in the compact for a quick low-key neutral eye.
The shimmery shade I really like, as it is not overly frosty and just gives a nice glow. A lot of highlighters are too frosty for me - this is very subtle and natural looking.
I would say if you are looking for something dramatic, this will not deliver that for you. However, I find it very useful for quick & easy looks along with being able to subtly contour the face as well.
Thumbs up from me. ;-)