Is there a recipe for a seamless home network?

Question

WiFi

Interested in the question of how to make a home WIFI network that would work stably in all rooms and premises?
According to the input data, there is an incoming 200 Mb / s channel to the apartment, it is also a router, but it works in 30% of the coverage of the apartment, but it is necessary that in all other rooms it works in transparent mode (conditionally there is a network named TEST - users need to configure it once access to the network and let them walk around the apartment and their device connects itself to a certain number
of routers and access will be consistently fast) sec)
PS standard apartment, concrete walls, approx. 70 m2

Answer 1

What do you think about repeaters?

Answer 2

It's strange, everything is there except for the brand and model of the piece of iron itself .. it's easiest to do this with a unifai, it's also possible on a microte - it's cheap and fucking fun to set up. And maybe you can get by with repeaters - look at the signal level / situation I
completely forgot - TP-Link, it's cheap and easier than picking a micro