The user interface is handy, small, specific, and configurable. Do you want to go through a bunch of text files quickly in Explorer? Turn on the 'Allow only one GetDiz instance' option and click on every file. GetDiz will display the files one after another in the same window. You can even configure different fonts for different text file types, for example one font for .txt, and another one for .nfo files. This is only a fraction of many features unique to GetDiz.
With GetDiz you also get enhanced functionality with DIZ and NFO files, which are often included in ZIP and RAR archives. GetDiz is able to display ASCII art correctly. You can even save text, NFO and DIZ files as GIF images! Even if GetDiz offers many features, the user interface is kept clean, so you can concentrate on text reading or editing. An optional USB-Stick installation is also possible (GetDiz portable version is included in default installer). This notepad replacement is available for free.