I recently bought one, also and love it.
I use a pulling technique when my hair is 75% dry to give me lots of volume and looser curls. (I don't particularly want looser curls but I need to wear them that way to try to minmize the difference in length btwn my very short front/top layers and long back layers, until they grow out.)
The hand-shaped diffuser is really brilliant. But I didn't want to buy a whole new dryer. I wish there were still adapter pieces available to fit the hand-shaped diffuser onto other dryers...which was the original idea.
But either way, I'm so grateful to have it!
3b (with 3c tendencies) on modified CG