I got mine this week as well. The camera is about what you expect from the reviews - acceptable, but not amazing. The biggest problem is start-up and focus lag when using the camera, but I read at least one review indicating that an update is coming out soon to address this.

I'm happy with it size-wise, it feels about the same as the S3 I had before it (but with speed and screen noticeably improved)

The phone feels nice, size wise. I'm a fellow with big palms and stubby fingers, and it feels just fine. In an effort to answer both questions at once.. http://i.imgur.com/tU642P1.jpg

Could you put a ruler next to the pen? Can't figure out how big it is :)

The notepad looks like a standard US 11x8.5 in - perhaps that's good enough reference?