A very nice shopping airport and Thai Royal Orchid lounges all over the place. However, only the lounges in concourse C have showers and few so when there's a crowd, especially for late evening and early morning flights, they get taken up very quickly and the queue is long. So when you hear the front desk announcing Q numbers, go take a number immediately. Also, I think only one lounge in concourse C have boarding calls (the lounge on the left as you head towards concourse C). There's a Royal Orchid SPA located in concourse D and it's free for C and F travelers. A nice choice of massages and the F travelers are entitled to special suite treatment. Service is EXCELLENT! If you have a long layover, make sure you checkout the government sponsored tour packages, very reasonable. I took a tour for a decent price of 2600B to Paragon Mall and Siam Ocean World. Pretty price considered that the entrance ticket is 800B, exiting and reentering the airport would have costed me 1400B for 2 persons, transportation would be close to 500B, plus we went through the VIP line for immigration both in and out. Lines were really long and would have drove my two year old crazy.... They have many tours including the floating market, outdoor and indoor shopping trip as well as visiting the famous WATs (temples). Food selection at the Paragon Mall was immense!!! It took me a long time to figure out what to eat! Ocean World was really fun for us and worth the time. We kinda speed through it in an hour since we had only 5 hours total for the whole trip. The tour came with our personal guide and driver (yes, 2 persons!).