Downloads won't be rough at 500mbps
You could theoretically download a 25gb 4k bluray movie in 7 minutes , then it would take 90 minutes to watch it
Unlikely going to a gig would be any faster as you'd need a server capable of more
I am a tech guy who lives alone and I pay for 35 for 200. Gig is available but it just wouldn't make any difference beyond occasionally downloading a brand new 100gb video game. But I don't do that often so an extra ten minutes is rather meaningless