Instruct: Classify an Amazon review into positive or negative sentiment.
Query: The Unofficial Simpsons 20th Season Box Set

Although the season has great episodes, especially the 2nd half with the transitioned to HD, this box set fails to include any special feature what so ever. First off, no commentaries; The commentaries are the reason these sets sell because it makes a detail description on the process on how the episodes came to be, both good and bad episodes. Second, no 20th Anniversary feature where the cast and crew discuss on their experiences on working on the show for 20 years. And finally, no intro from Matt Groening; it feels that Groening had no involvement on this release, thus making it an unofficial box set.For those fans who just want to see the episodes and don't care for the features, this set is a must buy. For the rest, I suggest avoid this product and wait for the eventual box set with all the special features, including The Simpsons 20th Anniversary Special in 3D on Ice!, in the near future.