Learning a language can be great fun or, for some, be seen as a challenging task. The access to society in Germany and the ability to understand the culture of the new or temporary home is a huge reward.
Whilst German is quite complex, it possesses and understandable logic. For Asian nationals the language can be quite a tongue twister. UK or US nationals may have learned at school, eastern and northern Europeans grasp it quickly. For some, the use of English in the corporate environment can create a major challenge to learning.
Easy, basic knowledge is available at the VHS and the Goethe Institute also offers interesting courses. Many private and more individual alternatives exist too.