I e-mailed the tech girl in Guadalajara befoer I went and I just flied down there. It is a very safe area and my husband and I took the bus everywhere just like the local. The Microsort lab there looks good. I asked the tech girl (Ana Paula is her name) to show me the machine, the procedure and stats. She has been doing this since 2009 and had a heavy load of data. On the day of sorting, I went into the lab to see the sorting process. Ana explained the numbers and chart on the screen so I again confirm that my husband's sperms were sorted.
I have been to Tijuana - once, 10 years ago. My in-laws speak fluent Spanish so we rent a car locally. If you drive your car with US licence down to Mexico, chances are the police there will harrass you.