Got my ASUS router 4 days early. The USB tethering works with my ZTE A3 and my Galaxy S6, which are currently my only android phones that are compatible with Visible. The speed is kinda slow - about 6 mbps at the most.
I'm going to stress test how much data I can use with this setup for the remaining 6 days of the plan I'm currently on. I have the ASUS/A3 feeding two of my Roku streamers and my work laptop.