You want to go to MMSD if you're in a Citation V. Facilities there are good, but not like the service you are used to in the U.S. I always do my own handling in Mexico it's so easy when you get the knack of it. I usually bring plenty of cash along also. Give the baggage handlers a five apiece and then give the customs and immigrations officers twenty to forty bucks apiece and the Commadante should get the most. The reason why I always tip these people is to get out of there as quickly as posible.If it is extremely busy, you usually tip more. I can't tell you how many times my aircraft goes from last to first because of the payoff. While most people frown on this type of behavior, it works in Mexico. Oh yeah, if your plane doesn't leak fuel, fill it up before you head off to your hotel. This will save you time when you show up to depart. The fuelers have been known to disconnect midway through fueling to go to an airliner that just landed. I go down there quite frequently and you should have a blast. If you feel uncomfortable about handling the paperwork yourself the FBO has several people there that can help you. Walk around with them so you can learn the ropes and don't forget to tip the Commandante. Some people don't tip and it's up to you but bear in mind that that the twenty or so bucks you give them goes a long way in Mexico and they will remember you. I usually spend about $150 in tips and I never wait for long. Also get yourself a rent a car at the airport. It will be almost as cheap as the taxi will cost to town plus it will give you some mobility. Don't forget to take multiple denominations of US dollars. ( 5's, 10's, 20's) to pay you bills at the FBO because they won't have the change. I usually take about $3000 and I pay for everything in cash, parking,services, fuel, hotel and rental. Give me a buzz if you have any questions and have fun.