I have an IPv6 ISP in Canada (Teksavvy), and quite happy with it (except for the lack of reverse-DNS). I'm too cheap to pay for a static IPv4 netblock at home, but IPv6 works fine to manage the ton of publicly-accessible VMs and other services (wifi mesh network) I run from home.

When I'm working from outside home, I use a tinc VPN to access my IPv6 services, and also redirect my IPv6 traffic through my home network.

Other fun experiment: if you are ipv6-enabled, look at the percentage of bittorrent peers who are in ipv6 vs ipv4. IPv6 is growing.