Chantecaille Cheek Shades are, on the whole, best suited to people who prefer a subtle blush. There are some brighter colours in the line, but the lighter colours in particular tend to apply sheerly. They aren't hard or chalky, the texture is just extremely finely milled and gives a veil rather than a block of colour. If you like the finish of Armani powder blushes then you may also like Chantecaille, but if you prefer a formula like NARS or Illamasqua, I would definitely not recommend buying Chantecaille Cheek Shades without testing them in person first.
Emotion is a warm, slightly coral pink shade that works with all but very cool lip colours. I reach for it on days when I want a little bit more colour than Rouge Bunny Rouge Delicata gives me, but I still want a subtle cheek colour. On my pale olive skin (MAC NC20) it gives a soft warm pink glow. I do find I need to reapply at midday to refresh the colour as it does fade within a few hours.