Looll, once I spring uaired someone, he DId to get out of it, end ended up being side KOd. Hahaha.
Uair is to good. More people should use SH Uairs frm the ground. At all times Uairs hitbox reaches significantly past its animation, even in the horizontal hit I'm quite sure. As tenki said, Uair has like no "dead" time. So it rocks. Its overall Sonics most dijointed move. I still don't know a dair that beats it out at max range, possible exceptions being D3s Dair, and Lucarios, although I'm quite sure I've gotten it to beat both. Either way, its still too good.
AS Tenki mentioned, single hit Uair into utilit looks too awesome.
If you have an opponent waiting to grab release you, Just Uair as you up the edge. The first hit really has surprising horizontal range, and good vertical range too. Enough so that if your opponent doesnt both have a super long range grabbed and isnt positioned pefectly to not expose his/her hurtbox, then Uair will beat out the grab. Yea, grabs beat out attacks, but that doesn't matter if the grab doesnt touch the Hurbox, and Uair totally prevents that. Ledgedropping into midair jump>uair is very safe too.
Personally, this is my fav of Sonics Aerials, as it probably shows XD. But it really is too good. Again, SH Uairing to hit opponents at your sides is good. It has more disjointed range than fair, and is way quicker than Bair, so use it. It doesn't exactly do a ton of damage, but its still awesome