Why Heroes is disappointing.

The more I watch of the third season of Heroes the more it disappoints me. Unlike the fourth season of Supernatural, which might turn out to be its best. And that got me thinking: Why don't I like the new season? A lot of other reviews I read are largely positive. And I don't like it at all. So far, it's even worse than last season. I figured it had something to do with why I liked the first season so much.

( What I used to love about Heroes )

All this seems to be missing in the latest season, and I am only watching it because I hope it might get better. I am not optimistic, though. Watching the season is not fun at all.

Any thoughts?