I don't understand why people are saying targeting astromech is underwhelming, it is allowing you to get a target lock when you should not be receiving an action. That is pretty strong.

Finn never switches sides

he was always a rebel spy

*literally not spoilers, as the movie isn't out yet and it's playing out as a carbon copy of EP IV, Finn and that guy who gets mind crushed by Ren are rebel spies inflitrating the SD for the plans of the new eyelash Deathstar (as seen on the poster)

just like c3po and r2d2 in their escape pod, Finn's escapes in a stolen Tie/FO and crash lands onto tatooine (or tatooine 2.0)

there, he runs into lady-luke and then they run into Han (again!) and they escape tatooine on the Falcon while being pursued by imperials (in Ties instead of on foot)

and so on and so forth

Soo... It's like poetry?

Yeah, it's so that they rhyme

Its why Poe's named poe