The commercial was brilliant. The ad agency behind it (Crispin Porter + Bogusky) is one of the top agencies in the country and have really opened the door to a great and memorable ad campaign. Alex Bogusky is a genius in the ad world.
It's comfortable, entertaining, funny, and makes the Microsoft brand seem the "normal guy" instead of a trendy / hip thing (by subtly being trendy and hip in its portrayal of the "normal guy / everyman"). It's the antithesis to Apple's campaign. I love it.
Besides everyone here being apple fanatics, the other reason you don't "get it" or think it's "lame" is because it's not aimed at you. Most people here are apple fanatics and would fall on the sword for the brand. So most discussion will reflect that bias.