There's some discussion on the safety features in a bunch of other threads. I think the consensus among those who've posted about it is that we'd all like a way to turn them off if needed.
Personally, I think that it's a decent idea for some and might even be where the industry is headed. But there are several key things that are missing from DJI's current implementation, which combine to create a solution that's far from adequate (or satisfactory). For example:
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There should be a way to turn the feature off in advanced settings. Some RC groups receive permission from time to time to meet and fly at/near airports. With the current implementation, all those people may as well leave their Phantoms at home because they won't even be able to take off. There are also people (like myself) who take aerial photographs of real estate listings, some of which may be near airports. And then there are others who live in places like New York City where a 50m altitude restriction close to airports simply makes no sense when most buildings are much taller.
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Some common sense should have gone into planning and implementation. There's an entire thread talking about this already (
http://www.phantompilots.com/viewtopic.php?f=4&t=11831). Some of the highlights include one poster from Boston mentioning being restricted at lower altitudes off of air traffic's flight path while areas that are directly along flight paths have less of a restriction because it's farther away. Then there are cases like people living in New York City (there's a lot of Manhattan that will be under some sort of restriction), and even Arlington, VA (thinking specifically of the Rosslyn area across the Potomac from D.C. - an area where tall buildings abound). There are also a number of posts regarding tighter restrictions around airports that are less busy (classifying them as Category A) while essentially ignoring airports that are busier (by placing them as Category B or not categorizing them at all).
All of this shows a real lack of understanding of "real world" scenarios on DJI's behalf. It also frustrates its customers. I don't think there's a person anywhere who would argue against implementing features to make air travel safer for everyone. And I don't think there's a person who would argue against having a software mechanism tell (as in "warn") them that they're about to fly into a restricted area or engage in some other stupid behavior.
But many - myself included - take issue with the abysmal implementation that DJI rolled out in the v3.0 firmware. The clear lack of logic, combined with the "hard fist" approach of not allowing for any sort of override mechanism, is not only inappropriate - it's unacceptable. It also has me reconsidering my recent P2V purchase from DJI, as well as many future purchases of more expensive multirotors from them. I'm really thinking about switching over to a 3DR Iris or something similar, which doesn't have these restrictions in place.