Amazon's mesh system, not a bad price for the 3 pack, though I believe there will be an AX version at some point in the near future so maybe worth waiting … good system if you want something now and don't mind sharing your data with Amazon.
Lifted from the website:
An eero 3-pack covers up to 460 sq.m. in fast, reliable WiFi, so you can enjoy connectivity from the basement all the way to the backyard. 2 Ethernet ports on each eero make it easy to hardwire devices throughout your home.
Getting fast, reliable WiFi takes less than 10 minutes. The eero app walks you through setup and allows you to manage and control your network from anywhere.
With TrueMesh technology, eero adapts in real time to your home and your needs, so your connection is reliable and fast.
Next-generation mesh network technology.
eero TrueMesh software is built from the ground up to work seamlessly with eero hardware. Developed using machine learning and data collected from hundreds of thousands of real homes, TrueMesh’s dynamic routing algorithms ensure there isn’t a home layout or connected device eero can’t handle.
Peace of mind
eero takes care of its own troubleshooting and updates, so you can rest assured that your network is always secure.
Convenience and control
From the eero app, you can see what’s happening on your network, check device usage, share your network with friends, or even pause the internet.
Every component of the eero system uses world-class encryption and security protocols to keep your network and data secure.
Easily expand your system
With cross-compatible hardware, you can add eero products as your needs change.