After reading a few reviews, I was fearing the worst for our short flight.
We had to get to Cancun for a connecting flight back to Europe, so the stakes were very high. Aeromar was our only option to get from Chetumal in time for the international fligjt.
I was travelling with my family and we only had hand luggage, and paid the lowest fare possible, a very reasonable, true low-cost fare.
From check-in to arrival, all Aeromar staff were very professional and friendly.
We were very slightly over the 10kg limit for hand luggage but the check-in staff accepted this without charging us any extra, perhaps because the flight was almost empty.
The plane departed a few minutes early. It was comfortable and clean.
A small complementary snack was served during the 45 minute flight (not often the case on many big airlines, IBERIA etc...).
The flight arrived slightly ahead of schedule in Cancun.
Perfect.
I now have a new favourite small airline.