The mesh starts from your router connected by ethernet cable to the new mesh base station which re-broadcasts by wifi to the mesh nodes. I think the Netgear Orbi Tri-Band is the best one according to the reviews.... no doubt there are many views.
One view is that a Ubiquity wifi hub located centrally in the house will penetrate all parts, I doubt this will in an old house.
Powerline should work if the wiring has been renewed in a ring-main config, but not if in spur config. I use DEvolo devices in my 1990's house but could not make it happen in the daughter's old house. It has been rewired but separate circuits defeat the powerline.....
https://www.tomsguide.com/us/netgear-orbi,review-4263.html
One view is that a Ubiquity wifi hub located centrally in the house will penetrate all parts, I doubt this will in an old house.
Powerline should work if the wiring has been renewed in a ring-main config, but not if in spur config. I use DEvolo devices in my 1990's house but could not make it happen in the daughter's old house. It has been rewired but separate circuits defeat the powerline.....
https://www.tomsguide.com/us/netgear-orbi,review-4263.html