I took the train from Perpignan, France to Paris and sprung for first class. A couple of weeks earlier I was on the very same train from Barcelona to Perpignan. On that train I was in second class. Frankly I preferred the second class trip, where we had 2 seats facing forward with drop down tables like on an airplane. In first class we were at a table with me and my friend on one side and a couple on the other side. The woman sat across from me and for the entire 6 hour trip had her feet stretched out and in my space. They spoke German, and I don't. Before making a decision you might want to see how the seats are configured.