My fiance and his daugther went. Everything was good, interviewer very kind.
They told him approved but requested a better copy of the original birth certificate of my step-daughter.
Since we live in Bahia it took about 2 weeks to get that back to the consulate and another 10 days for them to process and issue the visa so PLEASE make sure your documents are ORIGINAL and new, avoid bringing old copies of original documents.
In all the interview was June 28 and due to this setback the visa was issued on July 19, still awaiting the arrival of the passport in the mail.