What is most valuable?
I think the most important thing is the end-to-end view that you get of all of your servers when you set it up. You can see where problems are without having to actually experience them or tell they're experiencing the problems. You can be preemptive.
How has it helped my organization?
I think it allows you to go down and get real data about what's wrong, instead of having to email around screenshots. It let's you actually get the depth that you need, even the code level and code lines and that kind of thing.
What needs improvement?
I think a little more control over which transactions get that depth attached to them would be good. Right now, it seems like there's certain thresholds that you can set, but it would be nice if there was a more dynamic way to archive transactions, or keep around certain transaction types.
What do I think about the stability of the solution?
Stability and scalability look pretty good, from what I can tell; especially the cloud SaaS APM solution.
How is customer service and technical support?
We have not needed technical support.
How was the initial setup?
I was not involved in the initial setup.
Which other solutions did I evaluate?
We are currently moving from a monolithic application to a more service-oriented model where we're going to do micro-services. Spring Boot was the choice for that, because it has actuator support which provides some of the same features. We're looking at that, and weighing this because we already have it. We want to see if we can use of both, or maybe just use AppDynamics going forward.
What other advice do I have?
I think price and scalability are important when choosing an APM vendor. If it's a third party solution, is it going to be able to keep up with the solution you're using? How is the technical support, and how cutting edge is the solution. Are they keeping up with their competitors? So far, we have found all these things in AppDynamics.