I love, love, love this brush. The brush feels like high quality for a much better price. You can tell that it is built solid, the bristles don't shed and the handle is firm. The brush is soft and does a great job blending out product. I use mine for cream blushes.
This works just as good as some higher end brands. My eye shadow has no problem staying put. The primer is a very sheer cream color so while it doesn't completely cover and imperfections on your lids it does help "blur" them.