I just got one of these routers as well. I was wondering about Merlin. But it appears that Merlin does not support this router. I see that it does support the RT-AX58U/RT-AX3000 and read
here that the hardware of my new router is the same. I don't know if I am taking this too literally or if this is correct info. But if so, can I run Merlin for the RT-AX58U on this box? I am open to other alternatives as well. So just wondering what you ended up doing? Thanks