Needs some tuning but flies pretty good and for a while, even with a gopro.
Some gopro10 hauling back yard test flights:

Photos

Part List

Frame	ImpulseRC Micro Apex 4" Frame Kit Racedayquads.com	$57.99
Frame	Micro Apex 5" Arm Set - (4 Pack) (2 builds) Impulserc.com	$26.68
Flight Controller	RADIX LI - brainfpv (3 builds) Brainfpv.com	See Site
ESCs	Aikon AK32PIN 4-in-1 35A 6S 20x20 "VERSION 2" (12 builds) Pyrodrone.com	$83.99
Motors	4 x F2203.5 2850KV or 3550KV Motor (2 builds) Rotorriot.com	$67.96
Propellers	HQ Prop ETHIX P3B 5.1x3x2 Bi-Blade 5" Prop 4 Pack - Peanut Butter & JellyDefault Title (4 builds) Racedayquads.com	$2.99
FPV Camera	Caddx Nebula Pro Micro Vista Kit - Choose Color (15 builds) Racedayquads.com	$164.99
Antenna	Matchstick 5.8GHz LHCP Carbon Antenna - Choose Version (2 builds) Rotorriot.com	$25.99
Receiver	Nano SE 915MHz Receiver For Crossfire Protocol Rotorriot.com	$29.95
Batteries	2 x Molicel P28A 2800mAh 18650 Li-Ion Battery 2 Pack (2 builds) Racedayquads.com	$23.98
Misc Parts	RDQ Micro M8N GLONASS GPS Module (72 builds) Racedayquads.com	$15.99