Why use Terraform instead of other alternatives. Why?

Because of the following benefits:

• Templating is powerful
• Orchestration, not merely configuration
• It supports many cloud providers and not only AWS
• Immutable infrastructure
• Easier to create reusable modules
• Declarative, not procedural code
• Client-only architecture
• It is agentless

If you're unfamiliar with Terraform, it would be good to start with learning how to provision infrastructure manually.

Refer to a step-by-step tutorial

Let me know what else you like about Terraform and how do you use it?