Sometimes it scrolls down, sometimes it pages left. And if you want to go back using the browser you will have to click click click through each page!
I thought it was neat, but scrolling broke at page 4 so I had to use the widget along the left edge to get to page 5.
To the author: may I suggest you make page order vertical instead, so it is more natural to scroll; and maybe just use CSS scroll snapping to achieve the similar effect? (Also, when I scroll past the final page I don't want to be redirected to homepage automatically :-)
The idea is neat, but the implementation is a bit too over-engineered and hard to use. Hope this helps change that!