Had to go to Matamoros for the visa renewal just a couple of days back (Jan6-7, 2014). I was at first very skeptical about the trip and especially safety once I found out I had to go there. Luckily through the reviews on tripadvisor I have found Mr Salvador and his Best Western Property in Matamoros, and I cannot be any more thankful for him than I am!
Day 1: Mr Salvador picked us up on the US side, took me to the ASC for the fingerprints and picture, checked us in at the hotel. The rest of the day we got to relax and enjoy Mexican cuisine, Mr Salvador also showed us around town, told us about the history of the town, and more about the culture.
Day 2: He took me to the interview at the consulate, picked me up afterwards. We had some time in between the interview and when passport was ready for the pick up, so he took us to the local marketplace, and later took us to go pick up my passport, and then drove us back to the border where we securely crossed it back to the US side. I highly recommend his services to anyone that needs to go to Mexico for visa, there are no fees or anything, just go through the website and make the reservation through him at BW and you will be all set!
www.mexicovisaservice.appspot and Mr Salvador's phone number is 956-545-5255. He is a very credible and genuine person, and I cannot imagine this trip being any more smooth than it was.