It all depends on your expectations and what interests you. The station was OK and there was an old steam locomotive on the track for train enthusiasts but I wouldn't bother making a special trip to see it if not catching the train. We went on the train (diesel not steam) to Trai Mat and were disappointed with the scenery and the requirement to only spend 40 mins at the Pagoda before returning. In my opinion the trip was not worth 124,000VND but others obviously think it is. There were several brides there having their photos taken and people were allowed to wander over the tracks so if you want train station/track photos it is a good place for that.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.