I was lucky to get my surface on Thursday. I'm actually using it to submit this.
This is amazing. But if you want to know where is comes short, here are the cons:
Soft speakers. Yet too soft. It works fine for one person in a quiet room, bit don't expect to entertain anyone. It is considerably softer than my moms original iPad.
Grainy screen. Yes the ppi is 147. TEXT looks fine but the graphics is a bit grainy. Not a deal breaker but noticeable. It does look better than moms iPad. I think that is 137 ppi.
The worst: under powered cpu. This is a gorgeous platform for tablet os. Love it. But you defiantly feel the cpu being pushed to the limit. Forget 1080p playback. 720p also plays in slightly lower frame rate. It is noticeable. My titan 1 phone plays videos smoother then surface. You notice long app launch times.
If the cpu is enhanced, makes a huge difference, even in ui and user experience. I will be looking at other RT tablets out there.