Is the Giorgio Armani 'Luminous Silk' Foundation any good?

I have oily/acne prone skin and when I go high end and away from my regular routine of BB Cream with Mineral Veil, I really love using Chanel Mat Lumiere. This is the most amazing "traditional" liquid foundation I've tried, both high end and discount. It's a bit pricey (56 dollars?) but definitely worth it. When I wear it I get compliments on my skin from everyone. I prefer it to the Giorgio Armani foundation and I apply it with a MAC or Sigma foundation brush. I top it off with Jurlique Citrus Silk finishing powder and stay matte for over 8 hours in the hottest/most humid of conditions. As primer I use plain milk of magnesia and some bb cream primer if I need to fill in pores no matter what the foundation routine following. It along with what comes after truly keeps me matte.