One Google reviewer says there's one duty free shop and a small beverage counter, but "sweet and hospitable security and one of the most charming airport buildings ever."
[Source: Google Review]
Monks use the airport as well, perhaps to visit Bhutan's monasteries. Or they are locals going away for a bit.
Sometimes, the airport is used for more formal occasions. In April 2010, Bhutan hosted the South Asian Association for Regional Cooperation summit. Here, the Indian prime minister arrives at Paro.
[Source: Reuters]
As they come in for landing, pilots must navigate a series of quick turns, to avoid the tall mountains and get in position to land on the short runway.
The airport is only used in good weather, but gusts of wind are an ever-present risk.
[Source: The Daily Mail]