This is the sister restaurant to Khao San Road, but I don't think it is nearly as good. The food is decent, and better then average thai in the city, but I have had a few misses too. The seating is very casual, with plastic stools at the tables.
I really like the fried rice with an egg on top. However, I ordered it as take out once and it was not good at all. The portion was really small and it was super oily.
That being said, we went for Song Kran, which is thai new years and it was suuuuuper fun! They give you water guns to shoot each other and bring out the food in small courses that you eat as you run around. If you get the opportunity I was recommend going for this. You have to buy tickets in advance and they sell out fast.