Visitor Visa - B2

Hi

i had an interview on the 24th Jan at Chennai at 3.00pm. Although it was for L1&L2, i am posting my experience and observations here for the benefit of visitors.
Process:
1)There is absolutely no need to arrive much before your appt time. You are only let in according to your interview time.
2)At the entry, your passport is checked along with your DS156.
3)Next you enter the security area. They check all your belongings - there shd be no sealed envelopes.
4)Next you go to VFS counters - there are 5/6 counters in all. Or you stand in line for TTS (single line).
5)I booked with VFS, when my turn came - they put my DS156/157 + passport + I797 + Petition + Marriage cert in one folder and gave me a token - piece of card paper having 3 parts to it with your token number written on all three parts. She did not return the folder immediately. Told me to go to next building.
6)Stood in line at the next building. while waiting, our folders with the relevant docs were returned to us.
7)Next we were let inside, and were standing in line for fingerprinting. American officer - very courteous, very polite. After fingerprinting, one part of the token was collected by an indian.
8)Next stood in line for actual interview. Again a very polite officer interviewed us. Everything was in order, got the visa. He kept a second part of token with him, and returned the third part. Told us to pay the fees.

My observations of why some visas were getting rejected :
1) People seemed to have mugged the answers.
2) They were giving the same answers for different questions.
3) They were trying to argue with the officer.
4) They didn't have enough documents to prove their statements.
5) Some just stood there without any answer.
6) some ppl were showing all sorts of computer course certificates from any small institute, and claiming they are experts in the field. The officers could not recognise the institutes, and obviously were in doubt.

These are just my observations. Hopefully it will help some ppl. All the best.