The film maintained a good pace, but lacked a bit of closure for the train engineer

Okay, but not great.A little unbelievable how Neeson's phone calls were intercepted, his written note to his friend on the train was read, etc. without explanation. No disclosure of who was the 2nd person who tossed Enrique off the roof and who were the higher up involved in the underlying conspiracy.

I thought it was a very entertaining movie... from beggining to end.

It is a medium interest movie. What decreased the suspense and enjoyment of the movie was that the camera work and editing was lacking.