I’ve been using the MV1000 with an Alfa AWUS036ACS (lsusb 0bda:0811) plugged in, for a few weeks now. I am using the MV1000 as an OpenVPN gateway, and the wifi dongle as an access point. I have a mix of devices on ethernet and wifi.

After a few days uptime, the VPN gets laggy and starts losing packets etc, requiring a reboot. And once it crashed entirely. So it would seem Brume is not stable in certain configurations for more than a few days. This is with firmware 3.104.