Netgalley

I discovered Netgalley a couple of months ago after reading through many blogs. I am curious what your thoughts are on this? I have just started to request some books for my Kindle and have actually downloaded a couple. It seems like I have been approved for almost everything that I have asked for. I am curious about how/if my readers use Netgalley. Do you review most of what you download? I feel bad because there is so much that I want to read that is already in my to read pile. I also do not read the books (unless I really want the book) unless I can download it to my Kindle. I do not have the time or patience to read the entire book while sitting in front of my computer.