This place is a winner. I have been to Thailand and eaten many different thai dishes, but this place is the best I've ever had. Definitely order the pad Thai, it is amazing. Very hip atmosphere, with many communal picnic bench style tables.
They have singha beers (one of my favourites), a large selection of wines, and you can even get a Thai bucket (massive bucket of rum/redbull/coke) if your feeling rowdy.
Be prepared to wait, as this place is always packed. They don't take reservations, but you can put your name on a waiting list and they will call you once a table is available.