Nice restaurants with very good food but fish is more expensive than in other parts of the island. Many locals fishing around and working in their homes by the street.
Bangkok has so much in offer that everyone would find something for themselves. The food is easy to find, it's literally everywhere and there's a big choice of dishes. You can go shopping to any centre of your choice, visit temples, parks, ladyboy cabarets and other performances. If you go around you'll get floating markets, more temples and rural life experience. Worth to visit at least for a few days but stay close to BTS as it's the easiest and most reliable mean of transport in the city.
This is the least touristic place I've visited in Cambodia. There are many waterfalls around to see, if you come from Phnom Penh or Sirm Reap they organize day tours to Banlung. Worth to visit and disconnect.