Overall, I don't think HOTR is by any means one of Disney's best, but at the same time, I don't think it's one of their worst!
It's a cute movie. I did buy it (pre-ordered it from Disney.com, because the store wasn't doing the orders and I wanted my litho, dang it!

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Artistically, this WAS an achievement. Those backgrounds, and effects animation were GORGEOUS. Those backgrounds were so rich, and so lush, and I loved the way the camera moved around certain set pieces.
Casting? DEAD on. I loved each and every choice. Yes, even Roseanne. Who better to play a washed up celebrity?

Judi Dench is one of my absolutely favorite actresses. She is amazing. And Jennifer Tilly was the aways clichéed, yet very enjoyable comic relief, along with Cuba Gooding, Jr.
Writing and story? This is the one where I think they fell flat. The whole premise of the movie was somewhat outlandish, and no amount of good writing could get them out of the plot mess.
Musically - lovely! Glen Slater is a worthy contender to be a co-writer with Alan Menken. His lyrics are witty, ironic, and just plain funny. I didn't like the way the music was incorporated into the movie, however. All of the songs were top notch, and among Alan Menken's best work, but if we're going to have a musical, have a musical! Let the characters sing. Only one of the few songs was sung by the character. The rest were mood pieces.
I don't feel like I wasted $20. I thoroughly enjoyed it.