Just for consideration and my experience. I am a novice to wifi etc but research and conversation helped allot.
I replaced my Telkom router with many other routers and extenders, but nothing worked best as my current setup.
The Tenda
Nova mesh system.
I purchased the Nova MW6 mesh system for R2900 from Scoop.
It comes in 3 cubes (10cm x 10cm). All 3 are identical. One is used to replace the main router. Set up that which is Very easy. Then place the other two in your house at the main points you want and, power them and within a minute they connect automatically to the main.
The Nova mesh 3 cube covers 500m2 and in my experience covered all my dead spots. It is intelligent. One ssid. Triband. self healing. Auto switching between bands etc. also faster ping latencies.
Don’t think I will go back to conventional routers. It’s highly rated in industry and gives the Google mesh benchmark system a run. Best value for money. One of the many google videos below.
It solved all my fiber wifi issues.
As mentioned. My experiences.
Hope it can assist you.