I tried the Luvs Diapers once and decided I would not buy these anymore. What attracted me to them was that they seemed to be a good quality with a better price than Pampers and Huggies.
The character on the diaper was Blues Clues, which my kids like, but they like the Disney characters better. Although the characters shouldn't be important, once my kids started recognizing characters, they began asking for them.
I agree that Luvs has great leak guard protection. We never had any problems with leaking. My problem with the diaper is it just didn't seem to fit right. The diaper gaped at the waist and it just did not seem comfortable for my baby. I have not tried the new ones that have the Bear Hug Stretch sides, so maybe they are better.