Hey, i am using the GN2 since December and quite happy with it. In terms of battery life it's way better than my GNexus.
I see you don't like the S - stuff added by Samsung. I won't say it's good or bad it's upto you.
What I'll say is about the S-Pen. You mentioned above that there are some sites which require hovering with the mouse... You can use your S-Pen to hover over menus and it's pretty good at that.
If you keep the pen a few cms away from the screen you see the dot. Its because of Air View. Nothing gets typed / drawn on the screen unless the tip touches the screen. Not just touch but you need to apply certain amount of pressure in which the tip of the pen goes inside. (Hope you understood).
Thanks