Head bogging.. Stock motor is much more powerful and better than the mcpx because its brushless. mcpx is brushed. Head still bogs on too much collective but not near as much as mcpx. Has plenty power stock to do everything, you have to stil manage your collective. It is a small bird.
Tail hold: Tail hold is great! no blowouts like mcpx at all esp because its a connected direct drive with variable tail blade pitch.problems i am talking about are its very sensitive to bearing grittiness and gear mesh causing resonance in flight and thus causing tail wags. but it doesnt blow out.
Durability.. This is not a mcpx and not at all a nano or msr. Its much more durable than your 450 or 400 size bird. BUt its not gonna take crashes and stay happy as a mcpx. You have many more complex mechanisms and power and small gears.
Servos are burning but people are smacking this in the ground like a mcpx and expecting durability. Thats not gonna happen.
I will start smacking this around. and I will keep a log of what break at what type of crash. Iam really hoping i dont smack this in the ground too hard.

BUt this definitely will be my sim.

450 has taken too much beating.