Don't even bother with the designer's website. It doesn't display the fonts, it doesn't stipulate the license types, allowances or restrictions, it doesn't offer any different types of licenses. It's a bare-bones website which does nothing but list font names and prices and you're supposed to just pay up and shut up.
I wouldn't trust them if I were you. It looks like a fly-by-night operation, despite the large number of fonts they're claiming ownership of.