Agree. Such a feature-rich product at a good price. I bought Bluesound too but ended up keeping WiiM after comparison. I really hope there are XLR outputs too. I know I can get XLR to RCA conversion cables, but this is ULTRA, so I think it should live up to its name.
Another minor thing is, it is missing a hard power switch at the power input socket. So I will need to unplug the cord if I know I won’t be listening to it for a while.