The Marcie is a very light weight, breathable bra that provides a good amount of support for how delicate it seems. The lace on the cups is very comfortable and not at all scratchy, and the mesh of the rest of the bra is equally comfortable.
I found the band to be quite snug for a 28. It's almost to the point where I would prefer to wear it with an extender, but not quite. I think for anyone who is on the cusp of being a sub-28 band, this would be a nice bra to experiment with if you're not yet ready to jump into the custom pool. The band is also fairly firm-- it didn't seem to me to have a ton of give to it.
The cups are, like my Cleo Melissa, up front. On me, this bra creates a nice rounded, perky shape that I really like. I think everyone has a perfect style out there for them, and it seems to me that the George/Marcie/Melissa family is the one for my boob shape. The underwires sit about a fingers length back from the edge of my root, but that's my only real complaint about the cups of this bra. Otherwise, it fits very well.
I've worn this bra for a bit, and the only thing I will say is that after a full day of active wear, the sides can dig in just a little bit. I think this might have to do with the fact that I've lost a good deal of weight recently and don't have as much padding as I am used to, however.