Paid Restaurant at Amsterdam Business Class Lounge : KLM
When we come to three cabins, which make the longest slope a plane, then we are in the middle of a tectonic change. While it used to be the economy, business and first-class for many airlines, the first category has become favorable in many parts of the world and there has been a great improvement in the business class cabins. Add to the rollout of the premium economy, and today the lineup looks like the economy, premium economy and business class.