Things to consider…
What you need to know before getting started
Home size 1
Do you really need a mesh network? If you’re living in reasonably close quarters, the answer is probably no. Mesh networks are best suited to larger homes, or those built of particularly dense materials that cause Wi-Fi dead spots.
How many nodes? 2
If your Wi-Fi does need the range extension that mesh offers, how many nodes will you require? Check the specs of the mesh network you’re looking at — there’ll generally be a suggested range per node — and compare it to your home’s dimensions.
Current kit 3
If your router is currently working fine, don’t jump on the mesh bandwagon if you’re looking for speed; while mesh networks are efficient, you won’t find a big speed boost unless you’re currently struggling along on an outdated version of Wi-Fi.
Available sockets 4
Your nodes will each need powering, so they must be placed close to a power outlet. This isn’t a huge deal, since nodes are generally pretty flexible about where you place them, but they’ll need good communication with other nodes wherever they go.
Cheaper options 5
Throwing everything away and replacing your kit with a mesh network will certainly offer up results, but a Wi-Fi extender, or some cheap Powerline adaptors, may be all you need to quash those dead spots. Think carefully before investing.