Once Hamachi is installed, its configuration will be half way between the program's web and the assistant that we'll be shown the first time we launch it. Thus, in a few minutes we'll be able to have a virtual local network that is fully functional between our computers.
Since it's compatible with PC and Mac, the truth is that Hamachi is a very good solution to share files, printers and even to play games that only allow you to play multiplayer on a local network via the Internet.
All communications between computers are encrypted, thus transferring sensitive information won't be a problem at all. The VPN that Hamachi provides is really efficient, to such an extent that it can be used to configure servers in such a way that they will think that they are on the same local network.
How it works is totally transparent for the user once installed, and the quality of its connection is so high that all we can do is advise you to use it if you need to connect two computers.