The Solo initially made me slightly doubt my P3P pre-order... but not any more. Mostly based on videos I'd seen. Maybe there's better Solo video out there, if there is, I haven't seen it.
For example, this footage inside a cage. Is it just me, or is that Solo all over the place (every axis). The dude is constantly adjusting.
The P3 shouldn't have that issue with the sonar capabilities.
Then there's this video. There's not a whole lot of footage from the Solo itself... but what we do see is not very smooth.
Stuff like "Selfie cam" doesn't make up for it if the end result doesn't look professional.
I compare those videos to this one. Keep in mind that the Phantom is completely off balance. There is no counterweight to the GoPro at the end of the stick. So the Phantom 3 is both compensating for the GoPro on a stick AND the video quality is perfectly steady:
I do look forward to seeing what people do with their Solos when they get them. Competition is good.