Old me would’ve been all about such a nice upgrade, but now that I’ve been upgraded to 1G/1G Google Fiber in the first place earlier this year, I’m just happy to have that.
Even with more equipment besides that which they provide upgraded, it would be hard to notice a difference most of the time and wouldn’t be worth the extra $55 a month. It is nice knowing it’s an option in case I outgrow 1 Gbps. My current fileserver when I do a zfs send command piped into xz with -9 compression to send to backblaze b2, is still a little slower than 300 Mbps.