DO NOT INSTALL OR USE THIS SCREEN SAVER. Upon installation, this screensaver installs a menu extra which phones home with marketing information about your system. If you try to quit this menu extra using tools such as Activity Monitor, the application will restart, because, on installation, this screen saver's installer also installs a LaunchDaemon whose job it is to make sure that their spyware can't be quit. While their uninstaller does work (if you take them at their word), it is also deceptively phrased, as (if my memory serves me correctly) the screensaver's uninstaller uninstalled *merely* the screensaver, leaving the spyware in place; you have to run the SPYWARE's uninstaller to properly remove yourself of the thing, or take it all out manually.
In short, there are plenty of other legitimate, non-spyware screen savers you can install should you so desire them. This company's practices are, in my own opinion, so deceptive as to make sure they never have a place on my computer; I suggest you make the same decision.