- very flexible design - I can model test data based on rules defined by the user, fields can reference other fields and the generation patterns reusable. Things such as test data volume, it's distribution and it's format can be defined dynamically for different use cases - short learning curve, convenient user interface - the basic concepts of the tool are easy to understand, connecting the generators together and creating scenarios is very satisfying. Webapp is very readable and containt many useful shortcuts and workflows - fast generation, customizability - for me it's very good for creating test data for performance tests where the data needs to follow non-trivial business constraints. Milions of datasets can be generated between several minutes and few hours. - richness - many built-it generators and output data formats (and reusability of them, once again) - good documentation - the capabilities of the tool can be learned from the documentation, it also helped me during solution assesment phase when chosing a TDM tool - team - Genrocket team members are kind, honest and willing to help with use of the tool

Ease of use, extensive data formats, the level of support from the Vendor