Seriously?
You are praising Hyper-V because someone else made a virtual appliance for it? You're kidding me right?
"Are advanced networking capabilities a sign of maturity for a virtualization platform to you?" ... ummm, Microsoft hasn't done a thing. F5 release an appliance and you give Microsoft a pat on the back for that?
If you're going to write advertisements for Microsoft at least be honest and not try and pass it off as an article.