I'm honestly curious to see if Wonder Woman will be the one and only movie they put out that turns out to be good. So far, they've yet to knock a single film out of the park like Marvel has a few times. Avengers 1, Guardians of the Galaxy, and Winter Soldier are all nearly unanimously praised (some exceptions, of course). Most of the others all tend to lean more positively.As I said in the Phase 3 thread, even a "bad" Marvel movie is largely enjoyable and re-watchable.
But every one of WB's DC movies have split the audience. Man of Steel was like 50/50, Dawn of Justice was like 80/20 (negative being 80), Suicide Squad about 40/60 (60 being positive, since it did lean more to the positive).