yes, it most definitely does work. Ccertain routers that I've tested it with seem be invulnerable , but I'd say 90% of the AP's I've tested it with were successful. De-auth whoever I wanted based on their ip /mac address and device model. Increase your own upload /download speeds by up to 5x or more in seconds.
If you encounter any issues, install BusyBox and reinstall. (or just pay for the damn PRO and enjoy unlimited use. I hate paying for software (or pretty much anything in this world , to be honset), but I really , truly find it to be a useful enough tool to justify paying the ten bucks.