I finally got to play around with a Surface RT tonight and came away fairly impressed with what I saw.
The keyboard case in combination with the built in kickstand felt just as ingenious as I thought it could be when they first announced the concept. In practical use it makes the tablet feel nicer in use then having to latch on a bulky 3rd party keyboard case like one must with the iPad. Saves weight too. If there is anything here that I would like to see the rest of the industry (cough cough, Apple) rip off for their own products, it's this.
Truthfully I did have a few missed keystrokes, but that is to be expected considering how little time I had getting a feel for the new keyboard style.
RT felt lighter then I expected too. While I have concerns about the weight of the impending Pro, I wouldn't worry about it with the RT. As long as you are comfortable with the idea of a table that's a little too heavy for extended one handed use, the weight is fine. The same goes for the iPad 3/4, so this is by no means a deal-breaker for most and if it is you really should be looking for something closer to the iPad Mini.
Screen was beautiful. Probably one of the nicest I have seen on a tablet behind what Apple uses with it's Retina screens. I didn't do any extended reading on the device, but I would expect it to be decent enough if not as comfortable experience as you would get on the newer iPads. If MS can scale that quality as they move to higher resolutions then they should be fine in the long haul.
I continue to be a fan of the "Metro UI" and find it functional, beautiful and clean. Yet I also find myself doubling down on the belief that shoehorning the legacy desktop into this product was an absurd mistake. Had they launched it with a pure "Metro UI" experience with a promise of fully Metro Office apps launching soon, then it would be a whole different ball game.
Admittedly half the apps I launched felt buggy with several crashing on me at launch. What was astonishing to me was the fact that the reps at the MS Store didn't even bother to have all the apps set up to demo. Meaning you could launch some of them and get no further then the "set up" screen. Not a great way to demo your product.
Would I recommend it as a buy to the average user? That's a tough call. On it's own in a vacuum, I would probably say yes. Taking into account the competition? That's a whole other matter as the game still feels like it belongs to the iPad. At the end of the day MS is off to a good start here and they have taken some innovative approaches that have potential to shake up what's still a young industry.