Hi flew Gulf Air in Jan to Thailand via Bhairain. Gulf Air are not the best airline in the world but it was a good price so sometimes you have to lose a little for the price. Will I fly them again, NO.
Bhairain airport is plain and not much to do, duty free is good for smokes and goodies.
One bar and one resturant. The bar is called sky bar and has no windows which we found very funny.
Hope this helps.
Garrett