Mine was delivered before 10:30am this morning. I've been carrying it around all day, going to meetings at work with it and such. It sure is a people magnet! Everyone wants to hold it, mess with it. Universally, people remark on the build quality, which is the first thing I noticed when unboxing it, and I'm sure the biggest plus in the Surface's column for initial impressions.
The touch screen is ultra responsive, and looks fantastic. Sure, it isn't ultra high rez, but it gets the job done and looks great doing it.
I've not downloaded too many apps, but the ones that I have work great.
The Touch Cover is fantastic, and even though I own tons of other tablets, this one feature is enough to keep me using the Surface, at least at work. It's so handy that it's integrated into the cover. I love how it snaps into place, and how the outside feels.
The kickstand is another feature that I'm going to have trouble living without, should I want to use other tablets. So handy, and so well-made. I know they made a bunch of ballyhoo over their time spent working on it, but the hype was justified, as it works as promised and looks great doing it.
Overall, I'm very impressed, probably more with the build quality of the hardware than the software at this point, as I haven't gotten enough time with the latter, and am certainly glad I bought it.