I was concerned with the quality of this season given some cuts were made due to the CW purging all things superhero and announcing season 4 would be the last and that it would have 10 episodes...
But, i just finished episode 5, and it feels like they haven't missed a beat. Sure, a few plot lines have been rushed, but it is still the same show that cares about it's characters.
I was taken a back by the actress who plays Sarah, though. Seeing her in season 4, I think she no longer looks like a teenager and more like a young adult. It's like she grew up while everyone looks remotely the same. I think she's even more gorgeous now.
Also, it was nice to see Sarah's younger sister even if it felt more like a cameo. I thought for sure they cut her completely.