I did it awhile ago. Took some getting used to (and streaming live sports used to be a lot less enjoyable a few years ago) but now there's no doubt that I'll never go back to that.
It's really easy to watch whatever you want. I'm not very good at computers but I figured it out. I stream so I don't worry about copyright lawyers (probably being paranoid) and only have a 5mbps down connection (looking forward to having an option for high-speed other than the current ass-raping duopoly someday) - and yeah, very happy with the setup.
Oh yeah, believe it or not, I don't miss commercials at all.
Edit: My computer is an Acer Aspire One - tis not a beast.