I don't like the aspect ratio. I think it should be wider. Just my feeling though. I've been pretty much using it since I picked it up about noon yesterday. Certainly it is very readable and works well either portrait or landscape.
One of the main things I wanted was the search ability and that works well.
I don't like the fingerprints all over the screen though.
Touch sensitivity seems about right. Not too sensitive to react to everything but not too light either. You definitely have to
press to select or turn page.
The glare is annoying at times but not horribly bad. The screen is certainly better for reading on the 505 but it's all trade-offs, eh?