Should I buy the TP-Link Deco XE75 or Eero 6+ for a three-floor house?

For a three-floor house, the TP-Link Deco XE75 is usually the better choice if you plan to use wireless mesh.

Why:

• The XE75 is a tri-band Wi‑Fi 6E mesh, which generally gives it more flexibility in how it handles traffic across multiple nodes.
• In a taller home with nodes on different floors, that extra band can help reduce congestion compared with a dual-band system.

So if your priority is the strongest option for wireless coverage across three floors, I’d lean Deco XE75.

When the Eero 6+ makes sense: if you can use wired backhaul between nodes, the Eero 6+ can still be a very solid and often good-value option.

Bottom line:

• Wireless mesh across three floors: TP-Link Deco XE75
• Wired nodes on each floor: Eero 6+ can be a good value pick

Exact performance can vary a lot with wall materials, floor layout, interference, and node placement, so placement and backhaul matter as much as the model choice.