Now that the core metrics are in, the real questions to ask are:
If they've looked at any FTL metrics in datadog yet, and if so, whether they're happy with them. FWIW, down the road, if the need arises, we can/will always improve the logging then.
If there are any key flows worth instrumenting in either their code or ours.
This feeds into https://github.com/TBD54566975/ftl/issues/2021 (making sure the existing otel setup WAI)