Ultima Prime is a very nice improvement to Total Commander, where you have additional features available that will help you organize your files and folders more efficiently. The installation process has several steps to configure some aspects of Total Commander, so take your time.
The interface is as user-friendly as Total Commander has always been, only having new features included. On the top of the window, you have many buttons to access a feature by making one single click. It can select a style from one of the steps you take in the installation process.
The good thing about Total Commander Ultima Prime is that it comes bundled with useful plugins, so you won't need any other software. For example, you can add/remove programs, access autorun, CD/DVD burning, e-mail, virtual disks, a web browser, Notepad++, TeamViewer, Universal Extractor, uTorrent, Virtual Dub, and many others, but also be able to shut down or restart the computer.
The software is great overall, but it doesn't allow you to select the plugins you want or don't want to install. Most people are not interested in using everything an application (in this case, a file manager) has to offer. Nevertheless, Total Commander continues to use less CPU and memory than Windows Explorer, and that "feature" is always welcome.