Where to start...
Don’t expect the service you’ll get from airlines like Qatar or Emirates; the ticket price is the same, except for the service. During the flight you have to get up to get your drink and they don’t respond when you push the ‘attention’ button. This is terrible when you have a window seat with two sleeping persons next to you. They even were rude if you asked them for anything.
A part of our flight was with a different airline, so we couldn’t pick seats. The app from United told us to go to Lufthansa. And Lufthansa told us to go to United. It was horrible! I was on the phone for 40 min with CS of Lufthansa and we never spoke to anyone.
We had another flight that wasnt even a Star Alliance airplane. It had no A/C and blew warm air out of the control panels.
Lufthansa... never again.