ESRI's support is brilliant. Moreover, their software is reliable, adaptable, and extensible. They're continually improving and updating and are a world leader in geospatial technologies.

The reporting features are very interesting and very important. Reporting along with geoprocessing. Several algorithms are embedded in the solution which help to produce reports. So geoprocessing algorithms and very rich reporting are the two main features I believe are most important.

Intuitive GUI design

An all-round package with many extensions, support material and tutorials.

It adapts very well to our conditions. Additionally, its economic and the easy handling of the tool creates value.