My team and I have been using Atatus for the past several years to monitor and optimize our e-commerce marketplace, and it has really helped us detect and optimize application bottlenecks. The most useful and beneficial features we have been heavily relying on are: 1. Big-picture analytics dashboard to quickly monitor the overall health 2. Detailed performance analysis of the specific application end-points. The best part is that it gives a breakdown per application layer (e.g. how much time is consumed by external API, DB fetch, calculations, etc) 3. Super easy integration (at least with NodeJs) 4. Also it's quite easy to get started with the tool not only for tech people, because of an intuitive interface Also, Atatus has great Customer Support. We had a non-technical issue with the subscription because of my mistake and they resolved it quickly, without making me pay twice. Note: all these primarily apply to the APM module, which we were using the most.

It's easy to set up, simple to use, has great metrics, and is simple to pinpoint pain points in the app. Great customer support. I currently use APM and Infra and love how they show performance bottlenecks.

We've used atatus since it's early days - around 5+ years. It's evolved a lot in that time and has allowed us to identify and respond to issues before customers even report them. In addition, it allowed us to analyse and identify performance issues that we didn't realise existed, at one point reducing our download time by 6x due to some insights.