What a must have for dead spots

I live in a 2-story house and regardless of where we put the router, there's always a dead spot

With a couple of these and another router, the dead spot issue is solved

Paired immediately and completely fixed my problem of having a wifi dead spot that even the Apple Airport Express couldn't resolve.

Paired with an old router these have eliminated the wifi dead spot in our bedroom

I get a consistent 147mb/s connection