Cancun March/April 2015
I personally had a great time in Cancun, if you're the type of person that likes partying, hanging out with other people and have crazy times you would definitely have a very enjoyable experience. The buses are safe and run 24/7 and it's 10.50 pesos. Great bars, beaches, lots of things to do and places near by to visit.
Insider Tip:From the Airport to Cancun and from Cancun to any other town or city in Mexico, a cheap and good way of transportation will be the ADO buses.