I just built a pretty sweet PC in a mini-itx form factor and love my Steam account.
But I'll be picking one of these up. I was really floored by the presentation.
I love the multitasking capabilities and the DVR/guide features. They've taken voice search to a whole new level as far as integrating it throughout the UI and from the demo appears to be much more natural. I used to scream at the current gen xbox and the thing either wouldn't respond or would just give me a funky result. I've never been into flailing my arms around Kinect-style to navigate menus.
I didn't expect to see much as far as games because that's what E3 is for. They have to save some of the good stuff to wow folks.
And I actually like the name: xbox One. It's much better than xbox 720 imo.
At least we got to see the console and we also got quite a few details as far as specs.
People are far too cynical these days.