Six months ago I would tell you to save your lucre and buy something else, anything else, but not now.
I had developed a hatred for my 520 and just couldn't get on with it. I was so pissed off with the fact that other companies had features that were promised to us but didn't materialise, so I was going to send it back under UK consumer law as not fit for purpose.
I had reverted to using my Solo 3DR for any work that came in as I knew what it could do and it was simple to program, then I had an issue with the 3DR. I had work booked in so had to revert to the 520 and then I embarked on a very steep learning curve, the upshot of which was that I learnt to fly a drone correctly. I no longer had to rely on one that has programmes for people that can't fly!
No disrespect to 3DR but you could give a 5 y/o one of these and they would be good with it.
So yes, I would buy one now, read my post about my crafts failure and Yuneecs response.