This primer is very comparable to the more expensive Smashbox Photo Finish Foundation Primer, in my opinion. It has the same clear (colorless), fragrance-free, slightly silicony texture appearance, same kind of easy application and weightless feel on the skin. It feels very smoothing and almost hydrating on my normal/slightly dry skin. Just like any other primer, I only apply it on my problem areas and not all over the face.
I do have quite large pores around my nose. Does this primer fill them in perfectly? Not really. I would say it does just as much as many other primers do for me - it helps a little bit, but definitely does not make the pores invisible. And honestly, no primer does it for me.
Will I repurchase it? Probably no (there are so many primers out there that I still want to try). But do I like it enough to finish that 20ml tube? I think, yes. It does make my skin feel smoother and helps my foundation to apply nicer.