I’ve stayed next door to that hotel…gorgeous Maroma beach. We travel to Mexico a lot. At Cancun Airport the terminals have different procedures for arrivals. We fly BA into Terminal 3 - no immigration forms, short queues, some e-gates, no bag scanners or traffic light system just a walk past customs officials who occasionally ask about cigarettes/tobacco (they stop about 1/100 for a Quick Look in bags). Generally get through in no time. TUI fly into Terminal 2 which still has bag scanners etc a real pain in the arse. Well worth looking at BA flights/holidays in my experience usually a bit cheaper than TUI and a free bar during the flights !