What I like most about GroundWater Modelling system (GWM) is it's user friendly interface which helps students to understand very easily how all these softwares works.And i also like its powerful functions as well. 1).It has many tools that can be used by any level student who wants to learn about ground water modelling.2).It gives good results with high accuracy. Some features are not yet available such as automatic modeling of wells.Also some functions don't work properly so needs further improvement. But overall i think this software should become an essential tool to help people study ground water flow. It has helped me when studying my bachelor degree project related with hydrogeology.