I have been using this powder for years now and havn't looked back.
It goes really far, and applies easily. I use it to set my foundation.
The compact it comes in is handy with a little mirror. I do not however use the puff that comes with it as it makes it look cakey and is hard to apply. I always use a brush. The colour is great and blends in very well. Plus its cheap :)
This product is great for the days you want a small amount of coverage, without the heavy feeling of wearing foundation. It leaves your skin soft and is super fast to apply. Even though there is a small mirror inside, it's not needed because you can't go wrong with this!