Average none, though 2.5 Gbps is getting more and more common and WiFi is catching up too. You could max out multiple slower devices at the same time without hitting the limit of your uplink. I don’t have a use case for that, so I’d only upgrade from my current 1 Gbps to higher speeds if the price is comparable. That doesn’t mean that others don’t have a use case for it.
Using English is the only way that all my colleagues are able to read it, but if it’s just meant for you, or only for Spanish speaking people, I’d say why not.