The menus are animated in a "cartoony" way, and the animating is absolutely not overdone.
When you load the disc you will see this... thing. Press enter and the disc will spin, and you will have lots of fun when you see homer's head on burns' body, and so on. When you get the heads and bodies right, you will see the main menu. (You can skip this by pressing the menu button)
Some of the episode menus are animated, for example this one:
Blinky is swimming around in his fishbowl and Burns is blinking his eyes.
You'll not only get better menus, but the episodes in this season are better too. My favourite so far is "Itchy and Scratchy and Marge". I haven't had the time to look at the special features yet. There are music videos, interviews, commercials and more! The cover design is great, and the set has a total playtime of 506 minutes, thats over 8 hours! Yay! It's definately worth the money.