Can a kind soul with the RT-AC66U tell me how well this runs on it? I feel like the newer firmwares are bloated and are focused on the higher end routers, while the poor AC66, while being able to support the firmware, is left in the dust with constant drops and disconnects. 380.57 kept dropping my Hearthstone games from my iPad (even after hard resetting WITHOUT restoring the NVRAM) so I reverted to the 374.43 fork and it has been working well. My family complained of WiFi disconnects from their iPhones and Macbooks on .57 as well (we are an Apple family).
Thanks in advance for any advice.