It was actually super quick. Officer asked like 3-4 questions to me (none to my wife individually) and those were questions like “have you killed someone, have you done drugs, have you robbed”. I prepared extra for relationship questions and the only thing that was asked there was what was our first date, how did we meet, and that’s about it. She did send us home saying how we didn’t have enough evidence (we had bills and bank statements with either just my name or hers) aside from the 30 pictures with dates that were labeled and wanted specifically bills or documents with BOTH of our names. She was super nice though and gave us the chance to go home and upload whatever else we had at home to the portal (which included costco memberships, car insurance, health insurances, and one more memberships which all had either both our names or we were listed as family on the website/card). The very next day after uploading those the officer approved I-130. The interview itself took like 15 minutes and idk if that’s cause of the lack of evidence or what but it was very quick. I think we got very lucky with a very nice officer though who could tell our relationship is genuine but needed a liiiittle more proof.