Access Point vs WiFi Range Extender

Shaan,

The basic EX6xxx might not support what Netgear is designating Mesh WiFI Extenders - internally nicked "single SSID code" - what does allow to set all radios on a device (router, access point, extender, ...) to the same SSID (network name) and at least implements 802.11r.

For your project, I strongly suggest to look into ways to bring some Ethernet wiring (minimum CAT5A, better CAT6A, ideally CAT7 or better - the crux is the better the thicker, so harder to install in existing tubing), in a spoke and hub (star) layout.

On the central position, install a PoE+ switch, and out in the rooms, or ever other room, ... put up some wireless access points.

Netgear has nice offerings with the Netgear Insight devices (switches, WAC), the cloud based management platform, the entry level WAC505 are very affordable in sets of three/five/(ten?) and offer a much better management and user experience than Netgear consumer devices. Where you have a large number of wireless clients, you might consider to put a WAC540 (similar price tag to an EX7700, but ideally covered with a LAG/aggregation of two GbE Ethernet links).

There might be some Netgear resellers or system integrators in your area offering Netgear Insight as a managed service, too.