The word Sales in the name Salesforce does not do the product justice. It does so much more.

Salesforce has been designed on the basis of "Clicks, not code". So anyone willing to learn the Salesforce user interface (which is quite good as far as management software platforms go) is able to become a Salesforce user or even a Salesforce administrator. You don't have to know coding language to work in the Salesforce environment. Also, Salesforce has one of the best software training resources (Trailhead) that I have ever encountered. It is free to all, easy to use, and most importantly it is interactive. No scrolling through endless text in a user manual. There are hands-on modules and related videos interlaced and through it all you earn points and badges to display your level of learning.

Salesforce is so customizable that I can't think of situations where you couldn't configure the tool to do what you need. If Salesforce hasn't developed the capability itself, there is a marketplace where anyone else can develop and upload their solution for others to use as well. Also, due to Salesforce's success and size, almost every other app/software that you can think of has or is working on an integration with Salesforce. So if you need to use a different tool for a certain function, you can more likely than not still integrate it with Salesforce to enhance value.