It lives up to its claim in terms of smoothing over the skin - out of all the primers I own I'd say this one is the best. I have a patch of eczema on my forehead that often becomes raised and the texture of the skin becomes really rough. The moment I apply this over the top I can see a difference and I'm actually able to apply makeup over that area, so if you have un even skin this is the one!
In terms of pore reduction I can't see a huge difference when I first apply this, but once I apply a foundation/TM over the top that's when I notice a huge difference. My skin looks incredibly glowy and perfected. I like the fact that it doesn't give a completely matte finish either as it helps my base to look far more natural and isn't drying at all. It's similar to the Benefit porefessional, but feels much kinder to the skin and doesn't have such a heavily siliconed feel, more creamy?
To top it all off, the longevity of this one is one of the best I own. I have no choice but to use at least bioderma + cleanser in the evenings to take this off (some days I would use just cleanser), and if my base is heavier I'm looking at a potential triple cleanse for safe measure. This might put some people off, but at the end of the day I spent 12 hours of my day out of the house, so longevity gets a big thumbs up from me. When I come home in the evening my skin looks just as good as when I left and I friggin' love it!