This set and its pink and purple brethren are the replacements to the older three-pack of camis/briefs. This set is very similar to the older ones, but much increased in cost. I like them, and got them because I like all my dolls to have an underwear set, but at $10 they're a little overpriced. As such, they get a B+ from me.
The tank of the white set has a pink embroidered flower and AG initials. The briefs have a purple ribbon on the front band. I don't know why they would be two different colors.
They're pretty nice, as camis and briefs go, though the cami is a little more difficult to get on over the head than the older sets.
I have this set as well. I agree that the cami is hard to get on and off. But I still like it enough to have considered buying the other colors as well. I use the cami a lot to layer under other tops. What I really love is the feeling of the fabric. It is soft and has a nice stretch to it. These are the only underwear that I have found to fit my very trim WB Sam. Overall I would give this set an A.