The bus was really comfortable and had snacks, the seats were really spacious. Everything was on time. Overall it was a really good trip!
The reason we knocked off a star was the transfer in the middle of the trip that we didn't know about, so we got rushed off the bus and had to quickly gather our things. Also, all of the announcements were in Thai so we had no idea what was going on. When the operator saw we were the only ones left on the bus he spoke English to tell us to get off, so it was possible that he could have told us when he made the announcement. Otherwise we felt the service was fantastic and have no complaints.
Note to non-Thai speaking folks - when you get to Bangkok Station, you will need to go to a ticket window to get a paper ticket. The window they were trying to direct us to was out in front of the station but this was not obvious with the pointing. You go there first to get a paper ticket, THEN you go out to the bus platform to catch your bus. We almost missed our bus because the area people were pointing at looked like the seats, so we thought we were being told to wait there. We used Google translate but sometimes it's difficult if people don't use it in return. We hope this helps!
We wanted to get to Mochit Van Terminal and the driver wanted us to leave somewhere in Bangkok
We had to pay 100 Baht per person to get to Mochit Terminal and the bus was late and took 3 hours