For days and nights out with people knowing that pictures won't be taken this is THE BEST foundation. I don't even need concealer because it has THAT much coverage. I have hit pan so many times that I've needed to buy back-ups. I use this foundation and then seal it with MAC's Mineral Skinfinish.
Great Powder Foundation
To compare this to a drugstore powder is CRAZY! It gives you medium coverage but definitely buildable without looking cakey. I've literally packed this stuff on and still never looked like I had 5 layers. It helps keep my oil under control and I have had no bad reactions with this and I have Sensitive/Combo skin. I've had mine for 6 months and still have not used more than 1/2 the product. $26 is not bad when you can go months without having to rebuy. I say if you have never tried a powder foundation, give MAC Studio Fix a try :)