We operated Elasticsearch for years and learned the hard way that even though it usually does a great job, it can behave in unexpected ways as it scales. This can lead to problems that are extremely challenging to solve.
Monitoring tools that handle various systems with different architectures serve just as the base layer and don't deliver what's needed. Neither do managed services, which have significant limitations and disadvantages when you rely on them for operating mission-crtical ELK.
We are operation experts who spent years mastering how to keep Elasticsearch running smoothly