I like that it's so easy to use with multiple platforms (Windows/Mac) and browsers. It also works well in mobile apps from Apple as well. The only downside i see is that sometimes there are issues where you have to re-enter your password if they don't resolve them within minutes. Make sure you read up on their support forums before purchasing. If you're looking for something simple but secure then look into using boxcryptor! We've been able to encrypt our files without knowing what was inside of them which has given us peace of mind knowing that we can share those files securely.