The problem of remote access or telecommuting or needing to connect with the server with iron clad security keeping files and info behind the firewall. It does that.
It's a lot cheaper to run instead of a VPN. It does that.
It eliminates the need for portable storage devices or info being kept on laptops or other devices. IT does that.
It doesn't stop hackers though. That all depends on the quality of the firewall security and website security.
It's a great product and hopefully one that will and should be used widely. But it's only one component of a much larger security issue. But it's a good one.