It doesn't overstay its welcome, it doesn;t overstep its boundaries with its plot. It just tries to be an entertaining movie with characters that you can get behind.
If you don't think too hard about why Neeson gets brought in or how the baddies operate or what the point is, you may be able to enjoy yourself. At least until the final act, when the film goes off the rails. Like a train might do.
Jaume Collet-Serra has always exulted in details-it's what helps him stand out as an artist even though he mostly makes this kind of easily dismissed genre fare.
Spanish helmer Collet-Serra keeps the action, twists and conspiracy coming thick and fast, while also throwing in some artful editing and genuine jumps.