H1B, H4 Visa

I had my OFC on 10th December. I already had my fingerprinting done on 15th November. But I was asked to reschedule my actual appointment to some other day as it was admin day in Hyderabad. Hence I rescheduled and printed an appointment confirmation letter with the old DS-160. OFC saw that I brought the same DS-160 which I had used on 15th November and asked me to reschedule both my OFC and appointment again. I talked to 3-4 people and finally they allowed me. Reason was I did not attend the actual interview and my DS-160 was not used up. They did not take my fingerprints but let me go as a post no-show.

Actual interview was on Dec 11th. 11:00AM. I went there 1 hour ahead of time. 10:30 batch people were standing in line. We were asked to wait. After they sent the 10:30 batch people in, we were allowed to stand in line. Stood in line for about 20 minutes before we were sent in.

They checked the appointment confirmation at the gate and let us in. Once inside we were asked to sit. After sitting for about 10 minutes, a guy came and called our names. He checked our DS-160 and we were sent to security. After passing through the security, there is another waiting area. There the officer asked my I-797 and pinned it with my DS-160 and appointment confirmation. Then we were asked to go to a counter. There they checked my DS-160 again and confirmed my H1-B petition. After that I was sent to the finger printing confirmation counter. After that was done we were given a token and asked to wait in the waiting area. After waiting for about 15mins my token was called and I was asked to go to counter 15. VO was an Indian looking guy in his late 30's. I sat before the counter as the VO was interviewing others.
He rejected an F1 candidate, approved one tourist visa, approved one B-1 candidate. Then I was called.

VO- Hello, How are you
Me- Fine, How about you? (passed my passport, DS-160, I-797 and appointment confirmation letter)
VO- Tell me about your company
Me- It is a product based company
VO- So you don't work for a client
Me- No
VO- Where are you based?
Me- YYYY X
VO- Can I see your paystubs
Me- Sure (I was searching my files for the paystubs, I had loads of documentation)
VO- So what is your designation?
Me- (Still searching) I am a Software Engineer.
VO - What do you do for your company?
Me - (Still searching) I design software, develop software, test software (too much of vacation time and I gave this stupid answer :) )
Me - Finally passing in my paystubs.
VO- He glanced through the paystubs and said, your visa is approved. Have a nice day.
Me - Thank you. Have a nice one.

That is it. In counter 16 there was a white lady. She rejected 2 F1s, approved one F1 and one H1-B. One guy whose F1 was rejected argued with the officer saying that people with percentage less than that of him are getting approved. True to his word, the guy who got his F-1 approved had 10 percent less than the guy who had his F-1 rejected. But he had a good GRE and IELETS score and had good universities and overall a good attitude. I guess the key is good documentation and how you present yourself.