Anyone here have a rough idea what Application Insights in Azure can "tell" about a running Umbraco site that we can't see by looking at the log viewer? Like when you specifically add it in your code, like

services.AddApplicationInsightsTelemetry()

, what can mighty Azure tell us now? Counts of method calls or something else, useful?

Application Insights, in my opinion, gives a really nice overview of "failed urls", that is: it counts for each endpoint how many times it fails and can give you a nice overview of the endpoints with the most errors. I also like the performance overview a lot. Application Insights gives you a good overview of the URLs that perform badly and it can show you nicely in a timeline what happened in those requests. Also if you have multiple applications with application insights, it can show a timeline over all applications at once, so if you have an website and an external api for example, you can see all events from one url on the website combined with any calls that it made to the external api. I think the graphs that application insights shows just work really well, whereas the backoffice log viewer is just a pile of errors to me.

You can also setup monitoring and front end analytics etc

Thanks for the info!