The Phantoms are pretty much plug and play... well charge, compass dance and fly.
I had a self built Hexa flyaway with a DJI FC, so I'm a pissed at DJI.
I really like the Inspire, I've seen it in action and footage from it, which is pretty good. The P3 Pro has basically the exact same camera.
If you're new to multirotors it's solid, if you're not, it's a little expensive and toy like.
I've got over 10 multi's now, only 4 in flying condition... last one was the Align M470 ($1200), and I've got my eye on the M690L. So the P3 isn't really my thing... but I like the Inspire.
You'll need a hexa with lots of battery (>12ah) for filming in wind, the P3 will drain it's battery in <5 mins trying to maintain position.
The P3 will struggle in anything over 18kt.
The Inspire will do wind much better.
This one only cost me $160 to build and it flies great...
The future...
hexoplus.com/