I got unlimited, synchronous 1 Gbps a year ago and I agree that for day-to-day applications it’s not much different from the 250 Mbps I was getting from Comcast. There are a few noteworthy exceptions for me: (1) It’s much easier to maintain a good torrent ratio (2) Large backups, like system images, to the cloud are much more feasible now. (3) Comcast limited me to 1.2 Tb a month which sounds like a lot until you realize how quickly you can kill that downloading modern games.
In general I think less about my internet service now. It’s not at all life changing but it’s nice.