Not a bad airport. But, it should be noted, for an unintelligent sultanate, he is somehow simple and conservative. I would even say boring. While there are phone charging stations everywhere in any normal airport, there were very few of them at Muscat Airport and there are no usb connectors at all. That is, the charging must be plugged into a regular outlet. Dutiyri is expensive, however, like everything in Oman. Public transport from the airport is either an expensive taxi or ordinary buses without amenities. Currency exchange at the airport is extremely NOT profitable. So, of course, at all airports, but there's some kind of rudeness here. The difference in exchange rates with normal exchanges in the city is thirty percent, of course not in your favor. But there are a couple of advantages. Firstly, from the upper entrance estocade, you can observe how planes land and take off. Secondly, if you have a lot of free time - three kilometers on foot and you are on the shore of the Gulf of Oman.
A magnificent airport. With very comfortable seats and sun beds where you can sleep if the flight is delayed. A warning for everyone: only new sample dollars are accepted in Duty free. "Blue". Old-style only $1 banknotes are accepted. Euros are accepted one to one with the dollar. This applies to the whole of Oman. Also in Tanzania.
A large airport, there are not many people in comparison with the UAE.
There is a hotel on the 5th floor.
Everything is very expensive.
Clear navigation, friendly and attentive staff.