I recently went with the Netgear Orbi RBK22 (dual) system
Really helped to increase the coverage in the house - I had two AP's (older Asus AC750's) connected to main router via cables but the Wi-Fi coverage was piss poor and I had to frequently reset the AP's as the signal would drop with no explanation.
Also have an older single-story house with many walls and a 1000m2 erf and the wi-fi coverage across the property is great. Only issue I find with this Mesh system is you can't designate a 2.4ghz or 5ghz signal to specific IoT devices (sonoff/shelly etc) so you have to be creative on how to setup these devices.
Best of all, you don't need to have cables between the two ORBIs - only connect Orbi AP to router and add the satellite wherever signal is best.
Granted the interface is a bit lackluster but the remote management is a big plus! Setup is dead easy.