H1B, H4 Visa

Hi,
I have attended visa interview on 1st Oct and it went fine (Visa got approved)….Attended interview with family (Wife and 2 kids (4yrs boy 1yr old girl))
Background:
Working for US based MNC from last 4 and half years and having total 8 and half years experience.
Visa Priority: BEP
Consulate Location: Hyderabad
Booked Appointment on 16th September
OFC : 18th September
Appointment time is 3:30PM, we reached there around 2:30 and they asked us to wait up to 3:00. As we have 2 small kids, they allowed us inside straight away by avoiding Q line.
One person at main door is checking passports, DS160 confirmation page and visa appointment confirmation.
Then, second person is entering our DS 160 application number in his tablet and checking, and then they allowed us inside.
While generating bar code, person at counter asked couple of questions.
1. “Have you ever modified DS-160”: I told “NO”, then he repeated same question, they I said, ‘Yes, while filling the form we need to get some details from employer, those details I have updated’.
2. “What is purpose of visit”? I said, it’s “Work Assignment”. Then he said, ‘OK’ and asked to proceed inside.
3. At photo taking & Finger printing counter, there is no Q and I’m first person, lady asked for my finger prints and taken photo. They send my wife to separate counter. For our kids they scanned the photos, which we have carried.
That’s all over, and we came out in 10-15 mins.

For visa interview, I got very long gap and I gone through all different user experience in this forum.
Visa Interview:
Time is at 9:30, we reached consulate office by 8:00 and we waited 20 mins (Thought they may not allow 1 and half hour early) and started in the line at around 8:40
Initially (At main gate) they manually checked for the visa interview confirmation and passport and allowed inside.
In the first counter scanned bar code (pasted at OFC) and given token number and asked to proceed further.
Next is security check (similar to airport final security check), and they asked put all the belongings in a tray (Including wallet, Belt, lady ornaments, etc.).
We entered to a common area, one lady assisting there and she asked me to put my passport and Original I797 together and asked us to wait in the common area.
Then, I observed already so many people are waiting over there. My token number is 200+ and that time running token number is 100+, thought we may get our number faster as we have infant baby. Waited 15-20 mins (By that by kids started making big noise), then checked with that lady is there any faster processing possibility as we have kids, she told ‘no’, we have to wait.
Finally we waited for around 1and half hour, by that all the preparation and enthusiasm is gone in the interest of covering 2 kids.
Finally our turn came after 10:00, no one is there at counter, and we went straight away.
Me: Good morning, how are you doing today?
VO: smile and fine
VO: Passport please
Me: Given passport
VO: Which company you are going to work for?
Me: <Answered>
VO: Who is your client?
Me: <Answered>
VO: What is your salary?
Me: <Answered as per I797>
VO: What is your highest qualification?
Me: Master of Computer Applications, M.C.A
VO: To My wife: scan your left hand four fingers
She has done
VO: TO ME: Scan your right hand four fingers.
Me: Done
Now golden words came: “Your visa is approved”, I said than you and came out.
He has not asked any other document like: I797, etc.
After came back to office, I checked status by using DS-160 APP ID, it is showing….
ISSUED
Application ID or Case Number: YYYY YYYY XX
Case Creation Date: 30-Sep-2014
Status Updated Date: 01-Oct-2014
Interview is less than a min and I thought VO make me to engage for a while, when he is typing (Copy/Paste) something on his system.
My suggestion is: Proceed in the line at main gate to go inside as early as possible and plan to maintain your kids properly.