I have this same bra in 36A, but I've learned that 34B's fit me better, except for this bra. Aerie changed the design of this bra somewhat form my older model, the material is much softer than before, but it's thinner and A LOT stretchier, which makes the band too loose. On the good side is the band is wider all the way around which is nice. The cups also give me kind of a pointy projection that I didn't get from the 36A, I may try a 32C and see if it's any better, but I'm guessing the cups will be too narrow for me in a 32. If you're any bigger than a C I don't think this will give you enough support.
I really wanted to like this bra, it's comfortable and smooth but it's got a funny shape to the cup. The wires are quite long for a 34B and dig in at the top of the side a little. The band is really stretchy too, so if you're bigger than a C cup you probably won't find enough support from the band. I filled out the cup well but it is closed at the top a bit and it creates a small quad boob. For an unpadded bra it really projected my breasts nicely and captured every last bit of breast tissue in the cup, it just has a funny shape that I can't really explain, not pointy, nicely rounded but it's just off.
The bra is very comfortable but the cups are a little small and the band too large for me. I would recommend if you find a size that fits. It gives a good amount of perkiness without looking fake. It is also very pretty.