
Most APMs nominally support Rails. Not Scout.
The autoinstrumentation showing exactly, line-by-line where slowdown is happening is second-to-none. The N+1 detection is amazing. Showing me exactly where we're punishing our DB, both on web & async workers, makes my life (and the lives of our operations team) much easier. Review collected by and hosted on G2.com.
The cost makes it difficult to justify to people who believe "we have NewRelic, and one APM is good enough". Review collected by and hosted on G2.com.