I've had pretty decent experience with .NET + Grafana Cloud (hosted Tempo) You can generate RED metrics then tail based sample and send a subset of full traces

I've had pretty decent experience with .NET + Grafana Cloud (hosted Tempo) You can generate RED metrics then tail based sample and send a subset of full traces. As with many new things, there's varying maturity in client libraries and still things missing. The Redis .NET client (maybe others?) wasn't very good (maybe alpha/beta quality) but the other .NET stuff seemed reasonable. At least with .NET, it integrates with the existing System.Diagnostics API. I think libraries in some other languages (go?) are a bit clumsier depending on what type of diagnostic/debug/event/performance/reflection APIs that language runtime exposes for interspection.