A quick review of the interview and medical. My parents said everything went more or less smoothly, they had no issues with medical and everyone was very nice and helpful. They had all their vaccines and only had to pay the standard fee. For the interview they said everyone was fine too, maybe the interviewing officer was a little emotionless, but nothing unfriendly either. The person who collected the documents only wanted originals, no copies, no translations. We never even got the translations notarized, so I guess we saved some money there:) They had some standard questions: who are you immigrating to, where are you going to live (city, state). Then he asked about a police certificate from Ukraine as one of the parents lived there until 18. We don't have that and couldn't get it, which we explained and previously submitted an explanation to NVC. He left, and I guess talked to somebody, but when he came back, he just said that the visas are approved! I checked their visa status the next day and they are already issued. So everything went well overall, my parents maybe almost got a heart attack when he left after asking about Ukraine:)