This is great. My only issue with it is that you cannot edit it very well in the editor. Meaning, you can't preview the slides unless you publish it, since it's using code... Which might be a pain to explain to a client.
But, until Webflow makes a dynamic slider, this will work fine!
PS. I did try doing this organically by placing a dynamic list inside each slide, but as Sidney pointed out, you have to manually add slides since you can't place a dynamic list inside the slider Mask to filter out each slide... Too bad!