Lufthansa review by Juan Mart'in 2015-01-11

Flew from Zurich to Dallas via Frankfurt. Both flights on time which allowed me to do the 45 min connection in Frankfurt on time. Service in the transatlantic flight was very good with abundant wine and two meals in a twelve hour flight. They did three documentation checks: one at check in, one before clearing German immigration control and one literally at the door of the plane so, if you are flying with them to the US, don't put your passport away.