Flashed over Asus firmware. Factory reset and manually configured. Added AiMesh node on the 2.5 G port. IoT Guest WIFI on 2.4 GHz. Enabled DNS Director - router. Disabled 160 MHz and DFS on WIFI. Enabled Wireguard server and Instant Guard.
Set up AMTM, used USB2 thumb drive that had Entware and Diversion from prior test of Merlin firmware, added 2 GB swap, enabled Entware and Diversion (was really pleased that Diversion set up with the prior settings and block list!), installed Skynet.
Noticed that the Guest Network Pro has a slider to enable AdGuard (something new coming to the Asus firmware?)
No issues noted with my configuration or operation so far.