Instant overhead, DP baiter (somewhat) and if your Unlimited Platinum:
FLY AWAY NOW FLY AWAY NOW JUST FLY AWAY > j.236B
But yeah, if you do it fast enough it becomes useful, and it's mostly used after bubble oki In the corner since it opens 4 options: overhead, barrier, low, grab.
Though I noticed if the opponent forward techs into the bubble, then your kinda' fucked xD