Had my interview yesterday in NYC. I also have my I-751 pending so I went with my husband in case they asked to interview him. My interview was scheduled for 10:50. I arrived at 10:30, checked in at 10:40 and was called inside around 11:30. I can say that I had the best officer I could ever expect. She was genuinely trying to have a nice conversation and not only an interview. She asked about random stuff and told me stories about herself as well. She said in the beginning that my English was very good so she wasn't worried I would fail it. The total interview lasted about 40 minutes, I can say that 10 minutes was the usual naturalization questions and the rest was a good chat. She mentioned that because my I-751 was still pending, she couldn't approve me on the spot, but she would try to review the paperwork the same day with a colleague and try to get them both approved by the end of the week, since she didn't think she needed my husband to come in or any more documents. I haven't seen any updates yet, but hopefully by next week I'll see something.
One funny thing happened, when I had to write down the sentence she spoke, I accidentally moved the iPad a little bit and disconnected it from her computer. The screen went black and she got worried it would mess up everything, but it connected again and I was able to write it down.