I have worked quite heavily with Terraform and went through the trough of despair myself. But after a while I realized

1. It does quite a good job at what it does, given the complexity it's handling for us.

2. We have been expecting more and more from the tool.

Mitchell himself called Terraform stuck in the past in some social media platform. However, I don't see Terraform sucking up all the interest and cash in infra, making the landscape barren so nothing else can grow. So, I hope something better will pop up. Until then, Terraform is good for what it does.