What are the major differences between the anime/manga and the live action version of Perfect Girl Evolution? I really loved the live-action version of Yamato Nadeshiko Shichi na Henge! (or, Perfect Girl Evolution! / The Wallflower) and I'm considering picking up the manga or anime because of how much I liked it. However, I'm curious: what are the major changes that the live-action made?

I know one of these changes is aging up the characters; the cast is about college-aged in the live-action, but they're in high school (they attend a gakuen) in the manga. I also know that the landlady's son is a live-action only character. Are there other big differences between the two?
According to the Japanese Wikipedia, the main differences are:


  
  Kyouhei becomes the main character. Sunako is listed as the 3rd cast in the credit.
  Kyouhei, Takenaga, Yukinojou, Ranmaru, and Noi are high school students in the original work, but they are undergraduate students in the TV drama.
  Mine (Sunako's aunt; the landlady) doesn't have children in the original work. However, in the TV drama, Takeru is introduced as an original character playing the role of her son. He self-proclaims to be the keeper of the mansion while she is away.
  Shinichi, the master of the coffee shop (Meykuu Iri, "Unsolved") that Kyouhei and his friends like to go, appears as a regular cast in the TV drama.
  Compared to the original work, Sunako's personality is sharply changed. Even with the usually timid and negative personality, when Kyouhei calls her Busunako (Extremely ugly Sunako, from busu + Sunako), she will display her paranormal-thingy and high fighting power and also her personality becomes stronger.