That is presumably nostalgia, but I really liked the premiere. The art style is likely a breaking point for many people, but I really enjoyed it for my part.
Giving three distinct (if basic) personalities to H, D and L goes a long way for the characterization of the cast.
(I can't wait for people complaining about giving an active role to Webby and Della, about how a show about a duck gazilionnaire sucks if to the duck sailor is added a she-duck aviator...)