We use them. The bottoms are always too big, but DD just gathers them with a clothes pin and they look great from the front. The Jasmine costume that was on one of the dolls for Halloween in my album was from B-a-B, again we jsut used a clothes pin in the back. Felicity doesn't usually complain and Molly doesn't either.
The tops do fit better than the bottoms for sure. We don't have to use the pins on the tops. The other thing with the bottom is that silly hole for the tail---a big bonus when there is actually a tail, but not so much when there isn't. he-he-he