The reviews are VERY lacklustre, laggy, the multitasking is a gimmick because it's only supported by Samsung apps, it's even been taken to task over the build quality. I saw a video of it flexing and creaking in someone's hand.
The reviews for the Note 10.1 are some the worst I've ever read. Proceed with caution.
This review was especially bad and it's on an android centric site.
http://www.androidpolice.com/2012/08/21/samsung-galaxy-note-10-1-review-an-embarrassing-lazy-arrogant-money-grab/
Oh I have no intention of buying one at all, but I was just posting it as its a similar screen size. Comparing iPad to nexus 7 isn't really really justifiable.
But, lol. Yeah, total junk!