It's easy to use (it has drag & drop features), it integrates with most of our existing tools like Jira or Confluence without any problems at all - even if they are not built in/natively supported by radiant itself! The support team really helped us out when we had some issues during one upgrade from 7.* version into 8* versions which was very quick as well since there were only minor changes between them that needed fixing up afterwards but still within 24hrs after upgrading I could have my servers running again :) We're using this software mainly because its free so far :). No complaints yet besides maybe being able too do more advanced things than what you can see straight away? If your looking just get started right now then go ahead otherwise wait until next year where 9 will be released ;).