Originally Posted by Bob Russell
* The round page turn button on the lower left side. This is the only real and legitimate complaint I have about the PRS-505. New users, especially less technical users, probably won't notice. But you have to push pretty hard on the button to change the page, and it doesn't give that gratifying click that device buttons are supposed to give as feedback. Even worse, you can't tell sometimes whether or not you pushed the button, because there is also no screen confirmation until the page finally starts its flicker/turn process. It's probably more of a personal preference, but if you are picky about these things, you might want to try it out at a retail store before you purchase.
When I push the round page turn button to go to the next page, I do hear a slight click and it takes about the same pressure to push as the right side page forward button. The click is of a lower volume for the round page turn then the click volume for the right side page forward button. But it is there and I can hear it.