I may be in the minority with this... but I actually like the show.
While I was secretly hoping for a few of the Marvel Universe "B-list" characters to pop up (Cloak & Dagger would be fun... just saying), I'm enjoying the characters that they have introduced. I believe Ming-Na Wen will turn out to be the breakthrough character... she has real presence in this series. Also, the two techies, Fitz & Simmons, are just fun to watch. And the dialogue is very entertaining, start to finish.
Agent Coulson has been transformed from a supporting role in the movies to the lead dog... and whether its the scripting or the acting (or both), he is pulling it off.
I'm trying not to expect much as far as visual effects and CGI go. I think we've been spoiled a bit by the movies, which have $200 million plus budgets... a TV series just can't match that.
My son and I have already made watching it a weekly thing... and something to look forward to.