I feel like this foundation is definitely worth the money, you really can get away with using a tiny amount to cover your whole face as it is very full coverage and you can sheer it out with a damp beauty blender (or any damp sponge). The coverage is very full coverage so you really need to make sure you have a light hand otherwise it can become cakey very quickly.. If you have dry skin you may want to pass on this one as it can accentuate the dry patches since it is a matte formula. If you have oily or combo skin though I think this foundation would be fantastic if your looking for a foundation to really stay all day.
Also if your unsure on the formula, you could always ask for a tester at somewhere like Sephora or the Estee Lauder counter and you can try it on your skin a few times before you buy it!