Overall, I have enjoyed "Agents of S.H.I.E.L.D." life on television. But even I can admit that it has been a rocky road since the beginning. I think the show is solid. I think the show is fun. But I don't know if I can honestly say that it's a great show. I think there have been great episodes, I think there have been a great story arc or two. The show overall? It's mostly uneven. It seems the greatness comes in shifts. But I think there is still enough fun to be had that I keep watching.
One thing that has nagged at me for awhile is its circular plots. This is a spy agency that has faced many hardships and villains and evil organizations throughout the comic books. Yes, HYDRA is its "arch-nemesis," but there is more to S.H.I.E.L.D. than just them. It's seems like HYDRA and Inhumans have dominated the show since its inception. I have been starved for the new for a couple years now. Finally, it seems like ABC is trying harder to do something newer with this show. The S.H.I.E.L.D. team is going off-Earth this season.
It looks like there is going to be some Kree action this season, but the space setting seems kinda cool. I just hope that they don't set up some big things then decide not to follow through with them. That has been the shows biggest downfall over the years.