Though it reached the destination station on time, it isn't punctual at the boarding station. When traveling its hard to get sleep because of
1. Sound (Cranking sound)
2. Shaky (You would literally shake continuously until the train catches speed i.e, > 40 km) (which it hardly does)
3. While train stop or starts, you get a huge jolt as if someone is trying...
more... to push you ..
Train runs full, avoid lower berth seats to avoid above 3 points.
Book tickets only as a last option