Also, this will NOT fix bad locations. That is, if you have poor coverage or distance now, this doesn't fix such unless your old router is a POC. I continue to use/deploy 100 buck routers and they work super. But here's the thing. We know to place the router in the right spot.
Some networkers place them in basements or closets out of the way and then try to pump more money into the router.
-> What do I use? A dual core (you want that) TP Link Archer C9. It's very nice.