The ease of configuration, simplicity in managing software licenses across multiple platforms (MacOS & Windows). It's also very intuitive once you get used it - if your not an expert at using all its features then there are some additional training materials available which can be helpful when getting started but they should make this more obvious as i think that would help people who aren't familiar w/ licensing etc. Configuring new client accounts was quite straightforward though this could probably do better by providing step-by-step instructions rather than just saying "click here" without explaining what each button does! I've been able set license tracking so clients know how many licences have already run out and need renewing - great feature!