You have no idea. Client licenses for this thing are expensive.

But on the good side, the client software is super-easy to install and configure. It prompts them for the IP address, the preshared key, the user name, and the password, and bam they're in. No setups involving digging into the Windows configuration dialog boxes. This is a big bonus because the plan is to have some people installing this stuff who aren't necessarily very computer-literate. So I think it's worth it in this case.