The interface tends to be more cluttered and redundant, but an identical interface across platforms, regular improvements, and free course licenses and read-only access to projects make it an attractive option.
Recent versions have greatly improved labeling and added features that were standard for it's competators.
It also has network tools and a companion online version. Atlas.ti- Originally designed for Grounded theory analysis, Atlas.ti excels at memos and other tools for theory building.