This blush has been tempting me for ages and I finally caved and bought it when I spotted it on sale. I held out for so long because of the mixed reviews here and lack of shade variety. I love Physicians Formula but I wish they would expand their shade range. Most of the shades didn't really thrill me and it's worth noting most of their shades tend to run very light and don't offer many/any options for people with darker skin tones.
I bought the shade Plum Rose with the hopes it would show up on me. I am quite fair (I wear Nara Vanilla concealer) but it seemed even with that, this blush didn't work for some fair skinned girls. The packaging is cute but a little bulky. It does smell divine though. Sometimes I open it just to smell it. The smell doesn't last on the cheeks very long (which is good news for those who might not enjoy the scent).
The shade does show up, thankfully, and I didnt find I had to work very hard to build it up. It's a beautiful dusty mauve colour that gives a soft flush. It really is soft and silky and it adds a lovely sheen to the cheeks.
Given that it pulls a mauve-y pink on me, I couldn't see myself personally using this as a contour but it seems this blush pulls differently on different people. I really do like this product though and as other users mentioned, it does seem to look better as the day goes on and it sinks into your skin more. I would repurchase this blush again, and more from the line, if they made new shades and one caught my eye.
EDIT (03/24/20) While I was initially quite pleased with this blush, I drifted away from it and when I went back to it, I wasn't as in love with it as before. It just doesnt show up as much or as easily as I'd like. However, I do think the butter blushes are worth trying still (just in a different shade) as I did enjoy the formula and scent. If they come out with a shade I like, I would definitely give it another try.