I had my interview on 21st October. I was travelling so the delay.
I found K1 process very smooth. Most of the credit goes to VIsaJourney site. You get all the information here. But how much to take & how much to adapt is depends on every individual. And I think I managed well with taking only required information for my process. Also on the Mumbai Consulate all the information is provided, but it is very confusing. Only thing is you have to be smart enough to take it as per your requirement.
I had carried all the required documentation very carefully for my interview. The interview was very short n sweet. Initially one Indian lady collected all my documents & after two hours I was called for interview by an American lady. Some 8-9 question all together & that's it... Approved!!!!
At the consulate... The sitting arrangement, announcements, displays... everything was good. Just one thing I found little uncomfortable in this interview process was, the place where they were interviewing us. There were some 14-15 windows in a row. Collection of all the documents were done here & I thought they might take the interview separately in private. But to my surprise, they were taking interview there itself. There was lot of noise in the background plus there were few announcements on the loud speaker in between. Many of them who were giving interview were not able to hear officer's voice & were not able to concentrate. All the personal questions asked by the officer were heard by other people who were sitting behind. It was little embarrassing for that person as well as who were able to hear that. All this made me little conscious before my own interview. But all well that ends well...