Only good for short term

This primer is great for smoothing out and filling in your pores, but you need to be careful with this stuff!
This is a silicone based primer (which is why it gives that silk-like feeling) which is why it's so great at blurring your pores, but you need to make sure you wash your face really well after using it. It has a tenancy to sit in your pores and will stay there unless you do a through job scrubbing your face afterwards. As with all silicone based primers, it's not great on oily skin. The oils in your face will try to seep out and get trapped by the silicone - nothing gets out, and nothing gets in. It's a barrier for your skin and can be the cause of a breakout. If you use this make sure to give your face lots of breaks and do not use it every day! If you have oily skin, I would not recommend this.
I find this to actually be the worst of all silicone based primers. Yes, it makes your skin look beautiful and I will still wear it if I have an event that I know I will be at for less than five hours. But this can cause havoc on your face and cause more harm than good! My suggestion is to stay away from silicone based primers all together.

Works, not worth the $$

I've used a lot of pore minimizing primers in my lifetime and this one is the least worth it. The Benefit porefessional blurs better and costs less. This primer literally only blurs out pores and makes makeup application a little smoother. I got it at a discount so I'm not too frustrated but I would never pay $50 CAD for this 30ml tube. For that price, I'd get a primer that mattifies me throughout the day or hydrates or something.