They want you to rent a wireless hub. Buy your own. Otherwise, what @carlsbad2 said.
Truth is however that wifi signal quality varies by your neighborhood. If you are in an isolated home in an area that’s not densely populated you’ll have a better Wifi experience than if you are in a cramped apartment. So, yes, get good Wifi, but also hardware things like your TV and stereo just to minimize the chances of interference. Most of my neighbors here use Wifi for all their devices and the TV and the Wifi is not the issue they have. It's the Hargray service going down for days at a time.