The airport is compact clean and spacious. Immigration is swift baggage handling very smooth and indeed you could come out of the airport from the plane in just few minutes! As for departure hall there are enough check-in counters that even during the most crowded time of the day (around mid- night) there aren't many lines to wait to get boarding pass. Duty free is small compared to Dubai or Bahrain but has variety of goods ranging from Omani souveniers to latest electronics alcohol to sports equipments. Boarding procedure is quick and smooth and has enough seats in the waiting area. This is a retreat compared to congestured Dubai airport! I'd rate 9/10 for the overall quality of the airport.