I have a P4P and Spark, just added the Mini 2 to my collection and it's awesome.
I love the spark for its simplicity, front obstacle avoidance, and it's a tank in the wind for a small quad.
The Mini 2's occusync is fantastic, the connection is solid, probably as good or even better than my P4P. Good in the wind, but sends warnings constantly, didn't have a problem flying against the wind with 26mph gust. Super quiet, doesn't draw negative attention like the Phantom. Long flight time... It's small and discrete, most people think it's a toy, so this works for me. Doesn't have features like the bigger drones, but this does a great job.