I'd rate this 5 stars but I rated it 5 stars already so it gets 6 stars.
I was happy with the program before, but I saw a new version that lets you export all of the sprites from a project. This is extremely useful for me. I have thousands of sprites, which would take hours to export one-by-one, and now I can get all of them in and out with ease. Sometimes the best things in life are free.