This mineral powder is my HG of makeup products!
I use the shade Medium in the winter and Medium Plus in the summer.
I don't love a lot MAC 's face makeup, but this powder is the best and I've never found a dupe. I apply it over my lightweight foundation or BB cream using a cheap small drugstore puff. Using a puff ensures that you are pressing the powder into your skin for better coverage and staying power. I used to use a kabuki brush but found I was wasting product and removing my foundation in the process. I also sometimes use it alone over some concealer for very light coverage.
I have combination skin, usually dry-ish but I get shine on my nose. I would say this is NOT mattifying powder, so if you are oily you should use a mattifying primer.
The reason I love this powder so much is because the colour matches my skin flawlessly, it blurs imperfections, and it doesn't "look" like powder, it looks like your skin, doesn't break me out or irritate my sensitive skin. It also lasts a really long time, I probably only need to purchase it twice a year. This is one product I don't mind paying more for.