Hm, HTTP/1.1 at 15.5s, HTTP/2 at 23.72s

Yeah, I "can see the difference clearly", but I don't think it is the kind of difference they expected or intended.

Edit: Firefox 40 on Windows 7 at work. Will try at home as well.

Oddly enough, the Akamai demo someone else posted gives me 18.47s for HTTP/1.1 and 2.24s for HTTP/2.