I have the Nook now for 3 days and am totaly happy with it. I have a Sony PRS700, which I wanted to replace for personal reasons, not because I don't like the reader.
So I bought a Kindle 2 and tried it for a few hours. But I didn'T like it at all, there was no chance, that this reader could replace may Sony.
Than I got the Nook and it is awesome. Sure, there are some littel bugs, but I'm sure, they will be solved in the next time.
I did a set of pictures.
Nook unboxing and comparison with Sony Reader