I've waited a while to review this after my disasterous experience with Pro Lumiere. Mat Lumiere is so much better for me.
It's matte but not flat, lifeless matte. It has a touch of a glow to it that keeps it from looking awful. The staying power seriously blew me away. My first proper test of it was at a gig in a very hot, sweaty, packed club. My former love, MAC Studio Fix Fluid, would have been somewhere around my ankles by the end of the second bands' set (no joke, it was so hot sweat was dripping from my chin!). Mat Lumiere? It stayed put. Even more impressive was that I didn't look like a shiny, sweaty mess, just a little dewy but in a good way. By the end of the night my make-up was still completely intact which never happens to me.
True, I can get a little oily in the t-zone but I've yet to find a foundation that this doesn't happen with. The upside is that it's more of a dewy look and minimal touch-ups with blotting sheets & powder keep me looking fresh.
Also looks amazing on pictures. No ghostly white effect just nice looking skin.
The packaging is fantastic. Great pump that enables you to pump out a tiny amount or enough to do your whole face.
The only downside for me is that I have to order online as they don't sell the Porcelain shade at the counters here in the UK & that happens to be my shade. The lightest available here is just too dark for me.
Depending on how much time I have, I either apply with a foundation brush & buff in with my MAC 187 or I just use my Beauty Blender sponge (great finish for daytime. Excellent coverage without being OTT).
Would I repurchase? In a heartbeat! Any foundation that can stay put like this & with such a great colour match is not to be sneezed at.
EDIT 12/10/2009 : I've since discovered that I prefer Giorgio Armani's Lasting Silk foundation to this purely because it has a lighter texture & doesn't look as if I'm wearing much make-up. I've taken it down from my original 5 lippies to 3. Still a nice foundation, but not my favourite now.