just tested it. sound is fixed! music sounds exactly as it should, which is a night and day difference to what it shipped with. framerate seems the same to me at 35 fps. plays fine though
i'm a doom junkie so i bought this to see how it was, as it was only $5 bucks. and ideally, this would have ideally been the best way to play doom on the go as the joycons are solid and the screen on the switch is awesome.
unfortunately it's not. an android device, delta touch, brtual doom and one of these controllers is FAR superior (assuming you use an android phone of course):
Amazon.com: Mobile Controller, BEBONCOOl Mobile Game Controller for PUBG, Android Game Controller for Android/iOS/iPhone, Wireless Remote Controller Gamepad, Mobile Gaming Controller Supports Mobile Key Mapping: Cell Phones & Accessories
www.amazon.com
but if the above isn't an option, you have 5 bucks in your pocket and want to play doom, it's worth it IMO