The stregth of TF is the community and quality of docs. I use providers to manage an infra that is a mix of AWS + Heroku + external services like Rollbar and that just comes easy with TF. The point of it being paid (although I don't use any of their paid services), is that it is their core business and they are forced to continuously improve on it. TF 5 years ago sucked, but TF in 2021 is super smooth.