Without the kid branding and the name "Kermit," which piggybacks off of cultural feelings for marketing, this feels more like just another font. I found the body text hard to read and didn't realize at first it was using the font.

I read a lot of books on my ereader and generally find the best comfort comes from bold text and some kind of serifs. I really blaze through my books though, so I don't know if that actually improves my comprehension or just makes it feel better to skim.