Yes, it's worth the price. I've yet to find a powder that doesn't look powdery until I tried this. You'll be oil free AND silky smooth. It doesn't look like you're wearing makeup at all, and that's a good thing.
Unless you really like Clinique or have a skin allergy (like my Mum breaks out from everything except Clinique) I'd say not worth the price. I use Rimmel's face powder in translucent so it just keeps my skin matte and that's it and I'm pretty sensitive- most stores have it now. ELF also has oil blotting sheets for on the go at Target.