> Like Dropbox, but behind your firewall. File Sync and Share for the enterprise. Free up to 30 users.
Boom. I immediately am fully educated about what this does. I wasn't forced to watch a 2 minute video with no sound at work, or to google the product - questioning about why it's popular[0].
This is how you write effective copy.
[0] Notable offenders are yeoman and dropbox itself - both of which, while widely-used products - are completely opaque in what they do from their initial text. "You already know what I do" isn't good enough for people who don't.