The main cast has grown as actors. I really like that. As they've grown up, age wise, and have gotten more experience, the acting has gotten better. Started out cute, like Miley seeing Johnny, in the first episode, to seeing Jake in the later episodes.
yeah I really think so too. Yesterday I was watching an episode from season 1 or 2 on Youtube, then I was watching a recent episode on TV. There's a big change. :) It's awesome!