My wife had her interview today and was approved. She said the officer looked at a couple of pictures then asked her a few questions and that was the end of it. All the other documents she just flipped through them but did not look at the details. My wife felt that having all this proof helped speed up the interview even if they don't go through the details. When the officer sees that you have this much proof it gives them more assurance about the relationship, and in turns they don't give the applicant a hard time.
So after all the proof that we provided was sufficient for our case

Every case is different of course.