These are some screenshots and comments of main components.
Gladinet doesn't really have a main GUI page, but you can easily access whatever you need by right-clicking on the system/notification tray icon.

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There is a "Start Page" that opens when Gladinet is launched, but it is very basic.

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The first option opens the drive in Windows Explorer where the online drives are mounted.

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There is a "settings" page, but it is only in the Pro Edition.

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To sum it up, Gladinet Starter Edition's plain GUI is good for users who don't like to be overwhelmed with options. But the Professional Edition is for "power users" who like settings.