It's cross platform automation capabilities specially ranging across web, UNIX (via putty), and other systems.
SmartBear TestComplete offers cross-platform automation for web and UNIX, integrating with Delphi, C#, and Java. It supports Azure DevOps for continuous integration and deployment. Users can automate desktop, browser, and API testing using Python and JavaScript, though error handling is limited. Pricing is high, and it lacks native Git integration. Cross-browser compatibility issues with Edge and Chrome, stability problems, and challenging test logs are drawbacks for tech buyers.