Hello,
We just wanted to share our experience with the K1 process in Ciudad Juarez since we found this thread very helpful, even more helpful than the advice of the expensive attorney my fiancé hired

I wish we had found this website before hiring them.
First of all, I didn’t receive any packet, we all –fiancé, attorney and myself– just received the open appointment letter, a single sheet of paper, no packet; so if you just receive that letter, that’s enough, you can use the forms of the consulate’s website. If in doubt, contact the consulate.
He arrived in Mexico City on May 10, we flew to Ciudad Juarez the following day and stayed at the Holiday Inn Lincoln; taxis are expensive so this hotel is conveniently situated at walking distance (approx. 5-7 minutes) from the consulate and clinics. There’s a mall across the street, nothing fancy but you can buy groceries and there’s a Subway and Burger king in there (helpful when traveling with an American

).
On Monday, May 12, I went to the medical examination at the Clinica Medica Internacional (the one next to the consulate), no particular reason, I just read in this thread it was better than the other. Having read about being useless to get there very early, we arrived at 7:30. I went to the reception, gave my passport and open appointment letter. A few minutes later a lady called me and asked where I was staying, I just gave the name of the hotel, (some people were asked for address and a phone number if they were staying with family or friends), then she took a photo of me and told me to go inside to the hall 4, where there were approx. 100 ladies. They called me for the blood test, which was fast, painless (I can’t stand syringes!) and left no mark at all. Then I sat again and waited for a couple hours. Ladies were called in groups and finally I was called. We checked our information (birth date / place) with the nurse who called us and were given a paper robe and instructed to go inside a room (alone) to undress and wait for the nurse to come in. I waited and wonder “where is she?” she finally came in and weighed me, took my pressure, asked what I do for a living, if I suffer any chronicle disease /diabetes / if I had surgery / kids / trouble with police in Mexico or in the US. She asked me to lie down, where as, she performed a visual "ob/gyn" screening that lasted for less than two seconds and then asked me to lie on my left side. It was very quick. Then I was told to dress from the waist down and go to the aisle where ladies where waiting for the x ray. This too was very fast. When done, I was told to get dressed and go to the cashier. There I paid $1,574.10 mxp and was given a paper to pick up the results at 3:00 pm. Then I went outside and met my fiancé, I had my passport photos done at one of those places in front of the Consulate, they were expensive, but I had “warranty” they wouldn’t be rejected. After having a very much needed lunch, we went to the Banamex in Av. Lopez Mateos corner with Av. Paseo Triunfo de la Republica. Later on, we were back to the clinic to pick up the results, where we were called by name to get them. That was all.
On Tuesday, we arrived at the consulate at 8:30 approx. I handed my passport, the letter and visa payment at Banamex and were given a number. Then, went inside C building and after waiting, my number was called to a window where a guy asked for my documents: passport, letter, visa payment, DS156, DS156K, intent to marry, medical results, affidavit of support, passport photos, my birth certificate and a copy, my fiancé’s birth certificate… (I hope I’m not forgetting anything), and he asked me if I had been in the US, what do I do for a living, if I already had a job offer in the US, and again if I had been in the US previously. Then he told me to wait to be called again. This time was to take my fingerprints, and after that, I was told to go to the B building (all buildings are actually single-story, so don’t expect something big, as I did

). More waiting, this time for the definitive interview, so people where called to windows, pretty much like those before, with the difference (as far as I could see) that in C building consular officers seemed to be from Latin America heritage, and in this one, (B building) most of CO were Caucasians. I wonder if that’s to increase nervousness? Anyway, more waiting.. and finally my name was called to a window where I was sitting nearby. He was a polite guy, probably in his 40’s, who spoke good Spanish... I think he was even smiling

He returned our original birth certificates, asked my fiancé’s name, where he lives, if I had been in the US, if he speaks Spanish (which he doesn’t), so he asked me if I speak English, I answered that I speak good enough English to communicate with each other. Then he asked me how we met, I replied that in Cabo San Lucas and it so happens, that he’s traveling there sometime in June, ‘cause he needed to go to the sea.. I commented on how beautiful the place is and even told him that the best season is December-March because of the whale watching

Then he handed some of the photos my fiancé sent with the I-129 and asked me who they were (one photo with my family and the other with friends from university, in both of them my fiancé is lovingly hugging me

) I think that was all, when he said, “I’m going to approve your visa, congratulations and good luck - wait to be called again” I said thank you, but thought “eeeww, more waiting!” (I’m from Mexico City, anyone living here would understand why my lack of patience) but at least I knew I got it. I think I was one of the last ones to get their visas that day, ‘cause many people were told to go back the next day at 6 a.m. to be interviewed. So finally I was out with visa on hand at 4:45 – 5 p.m. and met my fiancé outside who was relieved that we did it.
My recommendations:
Like some people stated here, probably Monday-Tuesday are the busiest days, so keep it in mind.
Bring a lot of sunscreen and even an umbrella for those waiting outside.
It seems the consulate will move soon.. the taxi driver told me that the new location was south, somewhere close to the bus station. (I don’t have idea when they are moving).
My fiancé doesn’t want to skip recommending “Los Arcos” seafood restaurant in Av de las Americas and Paseo Triunfo de la Republica.. (he stills remember the bacon-wrapped shrimp!) good place to celebrate!
Hopefully this information is helpful. Good luck!