So here's our interview experience in Miami:
We arrived at the office 45 mins prior to the interview. There were quite a few people (10-20) with an appointment at 1. The security wouldn't allow us to wait in the lobby so we had to wait outside (it was 93 degrees out). I guess we shouldn't have gone so early but we just didn't want to be late.
We went through the security at about 1:00 and met our officer at about 1:30. He was pretty professional but not too chatty. After the oath, he asked if we had more shared documents to show him, so we gave him the new lease, new joint car insurance and joint bank statement. He asked us why we had a court house wedding, why my parents didn't come to our wedding, and why we didn't have a honeymoon. I got a little nervous but I explained that we wanted to have a big wedding in my home country and the place we want to go for our honeymoon is also in my home country. He seemed okay with it, but asked if we can show him our wedding bands. He actually had us take off our bands and was checking them very carefully (not sure what he was checking for...).
He asked if we have pictures to show him. We submitted about 15 pics when we sent in the application, but he couldn't find any of them in the file, luckily we brought copies, and we also had an awesome photo album that our brother in law made for us, and he liked it, pointing at some pics and asked where it was and that went well.
He asked if we currently have other roommates, where did my husband live previously, when's my date of birth, how do I support myself, what's my phone number, do we plan to have kids etc. Also, he asked literally every Yes/No question except one.
It was pretty smooth and he was about to tell us the decision, but the fire alarm suddenly went off and everyone was evacuated to the outside of the building. Some kid had pressed the fire alarm for fun but we had to wait for the fire rescue to check the whole building. After we got back in the building, our officer told us we were approved with the conditional green card. He took my I-94 and had me sign the paper. It was a longer and harder interview than I expected it to be, but we are so grateful that it is approved.
Around 8:00 that night we received the green card production email.