I didn't really play with QoS on it, but it has a dual core 1.8 GHz CPU, so may be it can handle it. In the worst case, you can just make your own custom route

I didn't really play with QoS on it, but it has a dual core 1.8 GHz CPU, so may be it can handle it. In the worst case, you can just make your own custom router that runs Linux using x86_64 hardware. What's harder to find is a good MIMO WiFi cards for parallel connections. Qualcomm supposedly has some with open drivers (recent Atheros - ath10k, ath11k).