CPanel helps in several ways described in next section.
Email utility presents a very practical and functional email utility to create accounts for the new clients with user-friendly interface. These interfaces hold many other additional features in them.
By using cPanel you have full control over user account management. A GUI based depiction is available to handle the issues regarding web space and bandwidth.
It gives full support to all the development and database tools like MySQL, PHP, Perl, HTML and etc. along with backup utilities for your website data.
CPanel introduced a new term Web Host Manager (WHM) as an add-on to manage and maintain multiple accounts simultaneously. It is specially used to host unlimited websites through a single one. Reseller web hosting works on the same pattern because all the sub accounts can be viewed and managed by the use of this utility.
Another helpful thing in cPanel is the Fantastico; used to generate scripts automatically. These scripts diverge in a wide range depending on the nature of website. Most common are used in shopping sites however.
Literally, a practice of couple of times can make you a good user of cPanel because it's very easy to use. Many utilities to protect a website form spammers are also included in cPanel.
It's equally beneficial for cheap website hosting, free web hosting, shared hosting and all others. However, the web masters using internet marketing tools to increase ratings in search engines results may also get assistance from the cPanel.