I've had mine since July and I love it. No problems as of yet. It's so small people think it's a toy. I have yet to be around people who are angry about my flying. The spark is very non threatening IMO. I also own the Mavic pro. Spark is great for shooting stuff you want to throw up on Instagram. 4K does you no good there. Sorry to hear so many people are having issues with it.
John,
I think you said it well:
Spark = Instagram quality, somewhat less "threatening", more affordable
Mavic = Youtube (and better) quality, outstanding range
As the Spark and Mavic are very close to the same size for most practical purposes, there are really only 2 reasons to get a Spark:
1) Affordability if a Mavic is too expensive
2) Less "threatening" for the few situations that quality might come in handy...which for most folks...is almost none.
P.S.
That said...
Sometimes I'll go on youtube and find some well done video clips created with, say, a Phantom 1 with a 1080p GoPro and 2-axis gimbal strapped/taped to it, and I say to myself...WHY ON EARTH am I fretting over having the best camera (Phantom 4 Pro), or longest range, etc, as the most important thing, is TO HAVE A DRONE WITH YOU AND GET THE SHOT.
So in that case, a Spark, besides range (which comes in handy from time to time), is MORE than adequate, video/image-quality-wise, to create some pretty compelling clips...so if money is a factor (Mavic too expensive), just BUY THE SPARK
Another thought....
Buy a Spark, AND buy a used or refurbished P3P (for 4K and range)...and have BOTH a Spark and a P3P for the same money as a Mavic.