I have supreme confidence in Marvel, I will 100% see this movie. However, having known nothing of Brie Larson before this I have to say that from the trailer I'm not so sure. For a character that's supposed to be so strong she just doesn't convince me. Mostly I think it's the voice.

Edit: actually after rewatching not just the voice itself, but the delivery of the lines running throughout the trailer. Compared to SLJ for example, his lines are more natural and convincing. She SOUNDS like she acting.

We'll see if I feel different as more trailers hit and after the movie comes out.