I love the PC pieces I have Zaeobi! They seem to keep at least some of the same shapes of dresses and rerelease them in different prints- so that's helpful. They have great prints for DAs, much nicer than prints I've seen anywhere else.
The bigger sizes sell out quicker, so once things go on sale there's often just XS left (like Athleta unfortunately). So those of us who aren't XS need to snap up things we really like.
Not everything I tried worked for my shape, but the returns were easy enough.