I flew from Singapore to Madrid with ETIHAD: Is it good?

The video of the return to Spain that many of you had asked me for, and I think it's cool to close the circle of the longest trip of this channel. 18 hours (plus another 2 hours of delay) of flight, with Etihad, an airline I had not tried, but also rated as one of the best in the world. Will it be worth it?