This is also known as Bangkoks Eastern Terminal, as bus stations go this one is pretty scummy, has loads of buses going all over Thailand, but if your just turning up in Bangkok the taxi scum will be all over you offering you the best deals in Thailand, just ignore them and walk outside and get a meter taxi, you aint gonna get any sort of deal from these guys and will probably be charged treble for a journey in a 20 year old Skoda from this lot.
Anyway the coffee is ok and they do sell beer