I've run IPV6 via the Hurricane Electric Tunnel Broker service for a few years now, it was very easy to setup on my Asus RT-N16 router running the IPV6 build of the Tomato custom firmware.
Other then ensuring my own website is accessible on IPV6 i cant honestly say i've found much use for IPV6 sadly. Very few website are V6 enabled, even some from large corporations you would expect to be.
Like Kushan mentioned i think i read somewhere the Xbox One will use IPV6 by default if available, so that will be pretty neat if true.
My V6 speedtest, I think 60meg is pretty good tbh. I used the London server on Tunnel Broker:
http://img89.imageshack.us/img89/5046/ur3w.jpg
IPV6 check:
http://img405.imageshack.us/img405/1422/6ye8.jpg