Got there at 4:30 in the morning and was the 2nd person on line for an 8AM appointment, which only determines what line you line up on. I was on line until about 7AM and went inside.
Took a ticket, and was visited by the first person within 15 minutes. The process was very straightforward - he went over the paperwork and that's it. He did not care about nothing else, and told us to have a seat and wait for the second interview.
The second interview took forever. We waited about 2 hours, and fought sleepiness and frustration. By the time our number was called, we totally forgot about being nervous and just wanted to get our interview over with.
I must say, the woman who helped us was extremely friendly. I couldn't have asked for a better person. She seemed saavy enough to know about using Viber and WhatsApp and generally made us feel as she understood how it's possible to carry conversations.
I had been to the Dominican Republic eight times to see my fiance so it wasn't a real stretch to convince her it was real. We know everything about each other, have had mutual friends for years and I lived with her in the DR for some time.
It was an incredibly smooth interview process. Only the waiting sucked.