The best thing about ZAdviser is that it enables us as an organization, in real-time to get insights into our code base which helps us make better decisions when deploying new features or fixing issues within existing ones! It's not very intuitive at first but we are getting used to it now :) We haven't found anything yet since starting using this tool. Maybe I'm just slow :). As per my knowledge so far there isn't any other such solution out here for monitoring applications deployed across multiple environments like dev/test & production with high accuracy. Some of our clients complain sometimes regarding deployment delays due to infrastructure errors they face while developing their application. This has been solved by me after realizing its root cause because of lack of proper insight from previous tools available.