Review (4/5): Love the BB Booster, Magic Cushion is ok.
I love the BB booster. I mix it in with my BB bream (in tube form, not a cushion) and it really makes my face glow without being too shiny. I've also tried using it as a primer, but didn't notice anything spectacular.
Jury's still out on the magic cushion. I don't really like the way it goes on my skin when I'm wearing no makeup - it cakes in my more porous areas, even when I'm wearing pore-reducing primer. That said, it's great for touch ups throughout the day, and I keep it in my purse for that purpose. The case is cute and classy, so that's a plus.
The whole set is quite affordable, so totally worth trying out if you're interested in the products.