This was the very first anime to be translated into Chinese. It became very popular in China, especially Hong Kong.
This show is considered a pioneer of the marketing strategy known as "media mix": using an anime to promote a new singer. Creamy Mami was voiced by then-newcomer Takako Ôta, and the show's opening theme "Delicate ni Suki Shite" was her first song too. The result was a great success.
The cats that aid Yuu are called Nega and Poji, after "negative" and "positive".