Visa Stamping from Canada/ Mexico

Thank you everyone for sharing your experience that helped me to prepare for my appointment. I would like to share mine.

Background:
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* This is my 2nd H1B extension and visa interview after I-140 approval. Initially I booked for the appointment on dec 31st and cancelled it due to cold weather. Rescheduled my appointment to May 31st at 7.45AM

* I don't work for any client and have been directly employed at a reputed MNC for the past 7 yrs.

Before the interview
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*Arrived 2 days early to Vancouver. Stayed in a hotel close to US consulate (10 minutes drive approx).
*On the day of interview, I went with my family (2 kids US citizens). Parked my car in a public parking lot (a block away from the consulate). Left our bags and cellphones in the car itself.
*Arrived at 7.15AM at the consulate (next to Starbucks). We were asked to wait till 7.45AM.
*At 7.45AM, they verified DS-160, passports and I-797 and asked us to leave smartwatch in the locker. (After that we waited in line for about 40 mins) then we were asked to go to upstairs (1st floor)
*Airport like security in the 1st floor, after that we went to the next counter in the same floor. They verified DS160. I asked them to use my new DS160 (as I had previously cancelled and rescheduled my visa appointment, I had created a new DS160). They set up the new DS160 for the interview
* Went to the next counter in the same floor for finger prints. After that we were asked to go to 20th floor for the interview.
* Please use rest room (if needed) in the 1st floor after finger prints, as there is no opportunity after that and before the interview.
* At the 20th floor, we waited for a couple of minutes before called upon.

At the interview:
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Me : Hello Sir, Good Morning
VO: Good Morning
( I provided our passports, DS-160 and I797)

VO; Where are you working?
Me: answered

VO: What you do?
Me: Answered

VO: Do you have approved I-140?
Me: Yes

VO asked my wife for H4: Mam, how long have you been married?
She answered.

VO: Your visa is approved. You will receive your passports in 3 to 5 business days.
Me: Thank you.

It took approximately 2 minutes for the interview. After that we came down to the ground floor and collected the smart watch.

After the interview:
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On the next day at 8.30AM, My application status became 'Issued' in the website, but my wife's application was still in 'Administrative processing'
*I waited till evening and no change in status, so I sent an email to the NIV center.
* Got a response back on the next day morning at 8.30AM that the status is now changed to 'Issued'.
* Within couple of hours, I received a notification from Canada post that the shipment is picked up.
*Since the shipment confirmation was received on Friday, we had to wait for the weekend (Canada post is closed during the weekend)
*On Monday at 9AM, received a notification that 'Shipment is ready for pickup'.
*Collected our passports around 1PM on Monday.

Whole process was smooth, except there was a little delay in processing my wife's application. But received a prompt response from the consulate and they resolved it quickly.

Our interview was on a Wednesday at 7.45AM and the passport was ready for pickup on Monday morning 9AM (due to the weekend) Otherwise, it took 4 days for processing. But compared to other location experiences in Canada, I think, the processing time is little slower. We actually went for a vacation to Canada, and it did not cause any change in plan, although I was bit tensed till collecting the passport.

Hope this helps. All the best!