The terminal architecture is bright and airy and high ceilings keep noise down but it's a bit of a hike from one end to the other and there are no moving walkways so make sure you leave yourself enough time to catch your flight. The retail space is given over mostly to expensive duty-free shopping. There is one restaurant/bar and 2 cafe kiosks all with mediocre food. This airport has the friendliest happiest immigration/customs agents I've come across. Getting to the airport from elsewhere in the country is easy as there are plenty of signs in English and the Icelandic road system is excellent.