Two years ago I bought the smashbox starter kit from Woolies and this primer was one of the items in the kit. I didn't use primer at the time and was a little hesitant of it as other ones I had tried in the past didn't make a difference to my foundation and most times made it fade faster not to mention they would make my face a little shiny.
After using it, I immediately went out and bought a large bottle from Woolies for everyday use. The great thing about it is after a day at work I don't need to reapply foundation when I got out in the evening - I just add on more blush and some make my eyes darker. Before I would need to redo the foundation and the whole face.