Why should you go there and how do you do it right?

People come here for a cheap Thai meal in air-conditioned surroundings, not for an evening out. This is the food court in the Lotus supermarket on the Maret side of the island. It offers exactly what you find everywhere in Thailand: a few stalls, plastic trays, neon lights, and food that costs a fraction of what you'd pay for the same dish on the beach promenade.

I would only recommend it in two situations. First, if you're already buying water and detergent and would rather eat than cook. Second, if it's the middle of the afternoon, the heat is unbearable, and you want to escape to a cool spot for twenty minutes. Otherwise, there are better restaurants on Koh Samui, and I wouldn't cross the entire island for them. Expect Thai classics and everyday home cooking—nothing special that you'll be talking about later.