If any issues occur on import Blender will display a warning or an error. If multiple errors occur it could be hard to follow. In order to view all issues open the blender console. Every error, warning or info that occured during the import is displayed there.

If your exported model does not lign up with what you see in the blender scene, make sure you applied all of the transformations to each object in the scene using "ctrl + A" -> "All Transforms"