I had to split the rating: as a stand-alone, if I had never seen the original, I would have found this a fun and enjoyable show. On the other hand, if I had rated it solely on its success as a sequel (mid-quel?), it tanked. So, it gets a middle-of-the-road rating.
The good stuff: fun with Tod and Copper: enjoyable new characters: slapsticky comedy: good songs. The peanut butter scene actually made me laugh.
The bad stuff: Out-of-midquelness and cheesiness. Amos Slade shows a soft side that would have made the original ornery cuss despise him as a total wimp. Disney can't resist glamorizing stuff--instead of another actual COUNTRY ANIMAL plot, it's all about becoming a star. (Okay, yeah, I know that it wasn't realistic to have an owl rescuing fox cubs in the first movie, but it was all sort of real-animal stuff...not country-star singing dogs riding ferris wheels and planning stardom.) The score and song music is totally a different 'setting' than the original movie. It was good, yes, but it helped destroy the continuity. TOD has to tell COPPER how a hounddog is supposed to track things down. (What the--??)
Anyway, as I said, if I didn't know the original so well and fondly, this one would have gotten a much better rating from me.