I wanted to believe I'd be one of the people with no problems; after all I had around 200 flights on my Phantom 2 and had zero issues with it when I bought the Inspire 1. However on the 5th day of ownership of the I1, it flew by itself at full speed into cliffs 100' below my takeoff point, destroying the aircraft, gimbal, etc. Supposedly the firmware logic that caused this was intentionally introduced in firmware v16, and will be reverted in v18.
I was able to pick up the pieces and send them to DJI, and they are telling me 6 weeks for repair. I'm glad to hear v18 of the firmware will be released about the same time I (hopefully) get my aircraft back.
I continue to fly my Phantom 2 in the interim, and am quite happy with the confidence I have in that aircraft. In fact if it just had a rectilinear lens, I'd be nearly completely satisfied with it (I know I can change the lens on the GoPro for $150 -- I just haven't done so yet).