Fast. Reasonably comfortable. And not terribly stressful like an airport. And most passengers are quiet enough and polite enough that there's little disturbance on the train. When I take the train in Switzerland, there's often a ruckus - some soccer fans making a ruckus and smoking on board was what happened last time between Lausanne and Geneva. I'm not fond of public transportation, but I do take A LOT OF IT! Have to reduce my Carbon Footprint whenever possible!