CRM is the most important tool in today's automated world of Sales.
It is very crucial to implement the same in the organization. We call it the Bhagwad Geeta of our organisation. It has to be followed religiously.
It takes time to get used to it so it is crucial to take training. Once you are used to it then it can bring fantastic results.
Instant SMS / Email, automated reminders, followups, analytics, goals and tracking, and so on.
There is a lot to work with in the CRM.
I recommend MeraCRM if you are planning to adopt one.