No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

In general, your resources and programs are OK, even if <http://pulumi.com|pulumi.com> is temporarily unreachable; we do have an SLA of 99.9 for our commercial tiers and if you are interested, please DM me and I can give you more details.

ok, i said that, because here in Colombia a lot of people use terraform and they store his terraform state file in s3(99.999990), the fear to use Pulumi in a production environment is that the state of the project be unreachable and their process of deploy (using IaC) fail because lost the current state.
This was the principal doubt about use Pulimi.

S3 "only" has 99.9 availability.
A lot of people confuse S3's availability guarantee with its durability guarantee of 99.999999999 (eleven 9s).

so, technically, there's no difference hosting state on S3 (terraform) or using pulumi's web state.