I just got the Deco X60 (3 nodes) and so far am mostly happy with it performance-wise.
Feature-wise though, since I use it only in AP mode, I see that most of the configurability options go away when not in router mode.
I understand that many of these don't make sense if not routing, such as QoS, but VLAN tagging is _very_ important for a guest network.
For such an expensive set of APs, I'd expect a basic service like this to be availble.
The VLAN tagging is available for router mode from what I've read, so this should be a small effort to enable for AP mode as all the system support is already present in the firmware.
Please implement support for this or provide a workaround as soon as possible.