I have reservations.

I like Jesse Eisenburg as an actor actually. I liked him in Zombieland, Adventurland, Why Stop Now, and a few other movies I've seen him in. I like the idea of how Lex Luthor is being portrayed in this movie. Heck, I even like the idea of him being Lex Luthor. From what I've seen in the trailers though, there's a nuance that just seems to be missing in his delivery. He just doesn't really come across as scary, even when he's trying to be subtly menacing.

Gal Gadot doesn't really strike me as Amazonian. When I think Wonder Woman, I think tall. I think built. Not necessarily jacked, but well proportioned and decently muscular. Gal Gadot doesn't really fit that physical description. That said though, we haven't really seen any of her acting in the trailer, so maybe she can clinch the role that way.

Ben Affleck as a middle age Bruce Wayne/Batman actually makes sense. Good on them for that. After the disappointment that was the Nolan Batman trilogy (the first two films were preachy, the third was hammy), I'm kind of glad Christian Bale isn't on for this ride.

Let's not talk about Doomsday. Please.