Holguin is a tiny airport, not used to more than 8 movements a day, so when things go wrong, they simply don’t have the staff to sort out the problems. I experienced delays in both my inbound and outbound flights, so I got to see a lot of the airport. Immigration is a major hold up, since they are very thorough at checking, and have few staff. I went through the gates 4 times, and each time spent over an hour in the queue. The departure lounge is small. but with plenty of seating, and an excellent view of the apron and runways from the observation balcony upstairs. There are a few shops, and a money exchange kiosk that changes money at the exact rate, ie. it doesn’t charge commission. There are two bars serving food and drink but, this being Cuba, the food selection is limited. I was there for 3 days and all they had was cheese and ham rolls for the entire time. Overall it’s a pleasant enough place for normal transfers, but you wouldn’t want to spend a lot of time there. Expect to get wet if it’s raining, as the covered airstairs, the busses and the terminal building all leak during heavy downpours.