I really enjoyed this trip. The driver was always on time. I did not expect this at all, but we were well fed, treated to sweet biscuits and provided with water. It was very pleasant. In addition, there was a warm blanket on the bus. All the people who provided the trip were kind and polite.
Our driver, was right on time. He let us make individual breaks :)
The music was nice and bus was comfy! He even showed us a view point. So we had all in all a really good trip
I slept well, the bed was fine, bathrooms were fine. Sink area was cluttered by big bags for the beginning of the journey, which made it hard to use them. The area under my bed also had dirty linen, so much that I had to clear it out to have space for my luggage. Otherwise my only complaint was that I wanted to sit talking with a friend without disturbing sleeping people, and even though the restaurant wagon was empty except for us, they would not want us sitting there without buying things and we did not need to eat at 10pm.
Good nice driver (he was doing everything himself - no assistant). We arrived on time, maybe even a bit early. However, rather old bus with basic comfort. No plug to recharge our mobile phone. Bottle of water and a little bit of food provided - no meal.
First was put on a rather new and comfy bus with seats layout 1+2. If you get the single seat it's very nice (seats number 1, 4, 7, 10, ...).
BUT 5 minutes before departure they figured that I am supposed to take another bus, which was older, less comfortable and spacious, and had 2+2 layout.
On top of that, departure time from Nong Khai in the ticket was 19:00, however the bus is scheduled for 19:30, and the actual departure was 20:00.
Arrival time to Bangkok in the ticket was 4:15, actual time was closer to 5:00.
The service and the staff was nice and friendly.