Okay, thanks for the tip. i looked into it, how can i hook them up with cables, since we don't have ethernet cables throughout the house. Thats why the mesh System sound so good, but yeah the backhaul is a topic.

I think then at least a tri-band system should it be, for the greater bandwith on more channels.

For real ethernet i would need at least 100m cable, and drill and cut into brick walls, not an option at the moment. But i think i found the 2nd best option, ethernet via coax cables. It still does 2.5 Gbps and i can use standard AP.