Has anyone used it? I've read all the posts about primers but I've either used them and they didn't work or I'm currently using them. I have really oily skin and finding a good primer that keeps my face matte has been difficult. I'm using the MAC prep+prime face w/spf mostly right now and it works for the most part but I still get shiny nearing the end of the day. So if anyone has used the NARS primer I would love your opinion on it, Thanks!