Pretty cool, but still not a fundamental change in the way you use the internet.
Actually, for me personally, it was...
With TWC and 50/5, I made a point to download anything I might think I wanted, because in the evenings, I never actually could get 50 down because it was shared with about 150 houses (actually I'm sure it was faster than that, but a 500 down connection shared with 150 homes is crappy at 7pm).
Now that I get a solid 18 megabytes per second, 24 hours a day, it has changed that behavior. Steam is a good example, I used to have the whole collection downloaded. Then it grew and I needed more space to keep it, and it was running slower keeping everything up to date.
Even a 10GB game would only take about 10 min to download. Now granted, I'd prefer faster, but what it means is that if I really want to play something, 10 min is enough time to go make coffee, use the bathroom, etc.
The "cloud" has become much more useful as such. With "more or less" unlimited space in my OneDrive, it has become practical to upload a copy of everything there. I would never have tried that before with just 5 up. I also run two online backup services, BackBlaze and Crashplan, to make sure I haev copies of everything. In addition, about 2 TB of critical files (mostly work related) are stored on Amazon Glacier. Again something I wouldn't try with 5 up, but with 150 up, becomes no big deal.
And yes, in addition to 4 copies in the cloud, I also have multiple external hard drives that I rotate on backups. I lost data once, nearly 20 years ago... NEVER AGAIN! :) (and yes, I test restores from time to time)
---
Just my personal experience, others will be different of course.