Gave it a 3 considering that the interview was over within minutes and ended with AP result. This is not reflective of the kindness, courtesy, or professionalism of the staff at the consulate. They were all helpful. The actual interviewer was the dreadlocked lady that we'd heard was tough, but my husband said she was very polite while handing over that 221g.
He said they asked practically no questions. He brought some evidence of relationship, but he was not asked for any of it. No issues of note - he brought extra copies of everything we'd ever submitted. It seems the decision was made before he ever showed up.
He was in and out within a few hours, and he can attest to all the practical advice ever given - don't bring any electronics or bags, and be prepared to be patient.