Drupal frees you from senseless worries. Its development goes for 13 years continuously, therefore it is debugged to every little detail. It is characterized by an extraordinary stability and it always does, what would you expect: it makes your website work.
To operate Drupal you will need web and d-base server. Both of these can be an open source, there is no need to buy any licence. The minimum for Drupal is PHP 5.2.5 (5.3 recommended), the minimum for Drupal 8 5.H version. Drupal cooperates with d-base MySQ(5.0.15 or higher, Postre SQL 8.3 or higher, SQ Life 3.3.7 or higher, Microsoft SQL server or Oracle are supported by additional modules.
Drupal has more than one million of registered fans. They are very helpful, they answer questions, recommend suitable solutions, correct mistakes in modules, design new features. Moreover, a DrupalCon conference is organized twice or three times a year. It is a great opportunity for everyone who loves Drupal. You can meet a number of people, discuss problems and get many informations. And last, but not least, you can take the next step in your career.
Web administrators usually like to know what happens on their pages. Drupal supports log functions for wide range of events.
You can easily see error news (error 403,404), content records and user´s activities. Administrators are able to identify causes of problems much faster.