Question about Zyxel AX7501 with XGSPON SFP+, VLAN 10

Hello all Have been using this router for a while now. I see I'm not the only one who is dissatisfied. Waiting for months for the right AP to come out for it (ax5400). Since nothing else is likely to work smoothly with your own mesh system.... Has anyone had experience with other mesh systems in combination with the router? (At the moment I have an Ac-1123 v2 in use, which works but switching between the wlans usually doesn't work for less than 5 minutes...).