Translation of lohnend

Writing large essays has never been my favorite task although it is one of the most important when learning a language. Spanish, English and German are all entirely supported by Vocabulix.
These are the guys who need to be blames. They are primitive, ignorant, selfish and they appear to me as thought they are confined in their ideas. They cannot think outside the box for even once.
In addition it was a good opportunity to see Macau. Already at the airport a guy approached us and tried to convince us into a day tour with him. We explained that we had only three hours left.