H1B, H4 Visa

I posted the same on the other forum too, just to share our experience and latest on this area
In short, no need to panic(but I was), have your backup plan, and keep a cool attitude.

We had DS160 submitted for Vancouver, and finally while scheduling we found the appointments were only available on Jan 4 2018(we checked during Aug 2017).
    Note1: On the US-Embassy Canadian site, they say appointments available with in 3-5 working days. This is for residents/Canadians-citizens(I guess).
           We live in the US, we are non-immigrant residents of the US, so we fall into different queue and appointments are not going to be immediate.
    Note2: Also to check[& schedule] the appointments availability, you do not need a fully submitted DS-160, you only need the DS-160 application number to see the availability and schedule the appointment, in case it takes longer time to fill and submit the DS-160, in my case it is.

    Note3: Also if you are not able to link your family members(each one need a separate DS-160), after you submit your DS-160, no need to panic as some times the website doesn't offer the link to file DS-160 for family members as a link
           You can submit a separate DS-160 for your family members and while scheduling the actual appointment, you can link your family members(each need DS-160) DS-160 there. .

Then we changed our plans to go to Tijuana, Mexico; Dates available immediate next week.
    I used the Vancuover-submitted DS-160 to pay the DS-160 application fee(I guess USD 190)
    By Aug 29 2017(not sure the exact date), paying fees online is not available any more for Mexico consulates.
    The only option is to pay by cash in Mexico, no need to panic
    I found Mark from USVISAMEXdotCOM, he offers various services, for TCN(third country nationals)
        I took Mark's help to pay the DS-160 fees in Mexico. He is very much reliable, and one other of my acquaintances took help from Mark in the same week and it worked well for both of us.
    Finally I scheduled the appointment @ US consulate Tijuana, Mexico, with Vancouver-submitted DS-160

Again I was nervous about the Vancouver-submitted DS-160 for Tijuana Consulate.
Then called up the customer care, they advised me to submit a new DS-160 for Tijuana, Mexico(the actual location, where I already scheduled appointment)

On the day of biometrics, We gave the Tijuana-submitted DS-160, though appointment was scheduled with Vancuover-submitted DS-160
bio-metrics went well.
Came back home and checked online, the details(DS-160 number are update to Tijuana-submitted DS-160), perfect. at this time it was a lot of relief for us.

Next day VO interview, went well, with two simple questions, you are here for renewal:yes, then same company: yes. Thats it, he handed the slip, to collect the passport next day.
    Note4: (I guess or it looked to me)This VO was training/orienting the other two VOs, so I knew he is very well experienced.

Next day collected passport, came to PedWest, collected I-94(USD $6)

Done.

Overall its a very involved process and went like a breeze

Note5:
    There were one family, they work for Yahoo-like company, got the VISA done(they also took help from Mark to pay the fees in Mexico)
    One guy working in Aeronautics, got it done
    One another guy working for Ericsson-like company, got it done
    And I m Cisco-like company go it done.
    Two other guys(looks like us/TCN) got it done
    I am not sure about Vendor-client-model, at least I met the some are the above(and I do not know they are all direct employees or VCM), please look for more experiences on this.

So overall, I felt Tijuana, Mexico has better probability to get the Visa done, even with this current political turbulence.

Safey @ Tijuana, Mexico: There is unknown fear, I must admit, Do not panic, take it easy, people are very very nice. The taxi people are very kind, overall people are friendly, no need to panic.
    I will definitely visit Mexico for tourism sometime.
    

Before all these things, we need to go to San-Jose Mexican consulte for Mexico Visa
They need 6 months(not six pay-stubs, it is SIX months) and all pages copies of your passport. 6 months of bank stmt for each applicant, even dependent spouse.
These guys do not budge for it, they are very very strict
Get online appointment for each family member
Take all the docs + copy, even for dependent spouse they need bank stmt with their name on it.
    I understood(at least it looked to me) they do it make it look tougher
    So better go to SFO-Mexico consulate(this is only a word of mouth experience, i got it done only in San-jose, but after three visits), if you are looking for Mexican visa.

Good luck :)