If you're an AKB fan, or want to get to know them, this show is totally worth it. I watched only because it's AKB, I wanted to see how they were as actresses and I did get quite impressed by some of them, specially taking into account their personalities. Some of the pairings annoyed me a little to be honest, I wished Sae had more interactions with Sayaka, Yukirin and Yuko characters, her being that attached to Acchan was a little off to me.
Also, Rena's character was the best, totally a show stealer!