I have the Asus Lyra AC2200 mesh and only 1 thing, it sucks!
Primary unit can use as AP after flashing the latest firmware. Secondary units lost connection all the time between 2 levels. Ended up pulling a LAN cable for each mesh units which defeats the purpose.
End of the day, I went back to my usual set up of multiple APs with LAN cable. More stable and cheap.
Primary is the Mikrotik RB751 as router only. APs are Apple Airport Express 2 units for 3rd and 2nd floors. All connected via LAN cables.
For ground floor, I used an old Airport Extreme. Each APs have different names.
Very stable for years.
Bought the Lyra used to test and it was useless if not line of sight. Which means the mesh APs need to be at the staircase to work properly. Staircase no power sockets la.
Conclusion, don't waste money on crap products. Multiple APs per floor is good enough. Can even use out APs for this purpose. I have a bunch of Linksys and TP-Link wireless router APs around.