I am interested in experiences from gamers that use a Kindle Fire HD with PDFs purchased from Paizo?

I just got the Kindle Fire HD 8.9" and am curious about the user experience before I purchase any PDFs from Paizo. It looks so much more appealing to me to do this than tote around 6-9 books around, but I am concerned about whether the large-format PDFs are legible and usable in-game on the Kindle screen.

Does anyone use the Kindle to reference their game books in play, and if so, what are the pros and cons?