Works as described, however it slideshows the small size previews, not the full size pin images. So basically useless, as you already see the small sized thumbnails in your board. Possibly Pinterest changed something in their code and would love to see this plugin updated.

This extension is criminally underrated.

I went to one of my collections and fired it up. Works like a dream. It even remembers your spot if you close the slideshow! And it moves down the page as you go through your pins so it's easy to make adjustments to your collection if needed.

Six stars.