The train is a little more expensive then the bus but it has some advantages.
It takes a few minutes less then the scheduled 50 minute long bus ride.
There is no chance of getting caught up in traffic like the bus
We feel it is more comfortable then the bus
The bus has some advantages as well
You can put your luggage under the bus instead of hauling it to the train
The bus is cheaper then the train
There are different companies that do this route. They leave almost every 20 minutes '
We have used both depending on the day and time we need to be at the station. Both are better then a 90 euro taxi