It was mostly range that was an issue, the house is 2 floors and we indeed wanted wifi in the backyard. Our backyard isn't that big so just a decent router would be able to reach as we bought a router in store and it was able to reach but it had stuttering issues so we decided to order one online. There are about two wired devices and about 5 wireless devices, four more if we include phones. There is only one person who uses Netflix in the house.
Side Note: I never knew you could change the base firmware of a router, I always assumed you would be stuck with it.