I think Datadog have started doing too many things in one product, to the extent that it makes difficult to use and I imagine too difficult to maintain.

I found it a lot easier to work with distributed tracing in New Relic than I did with DD. I was surprised when I came to that conclusion because this time, about a decade ago, I was not in favour of using New Relic at all.

If I found myself in a position to choose the tech I use, I'd probably think twice before accepting Datadog's introduction deal, or even using New Relic for that matter. You could get the job done with Kibana and Grafana for some time.