As a hardcore Marvel Comics fan, I've kept up with the show throughout the first season. Everyone who has posted here is correct, the first half of the season sucked, but the show is gradually improving. I can't imagine Joss Whedon is very hands on with the show, because it lacks all the qualities that made his other series great.
I hope the season ends strong and continues on until next season. They also have to get rid of the generic villains that have no connection to the comics. It's like they are saving everything good from the comics for the movies. That's fine, but it makes for a sucky Marvel show. Their are so many good shows on TV now that another season like this just won't cut it.