Elastic Cloud (Elasticsearch Service) is a wonderful solution for seamless implementation and maintaining its health. It is much more reliable in the cloud than the on-premises issues that occur very frequently on-premises. However, Elastic does not cover the whole world, and in my region, the Middle East, there are very few hosting places for Elastic Cloud (Elasticsearch Service). It is good news that Elastic recently invested in hosting Elastic Cloud (Elasticsearch Service) in Saudi Arabia, set to launch in March, which I anticipate will lead to more customers adopting Elastic Cloud (Elasticsearch Service) in the very near future.
The only way to visualize data in Elastic, whether it is on-premises or in the cloud, is using Kibana. Kibana's cloud version is not different from the on-premises version, but Elastic Cloud (Elasticsearch Service) is usually more up-to-date, as Elastic maintains and consistently updates Elastic Cloud (Elasticsearch Service) to the latest version, while on-premises versions may lag behind.
I assess the machine learning capabilities of Elastic Cloud (Elasticsearch Service) as truly exceptional, although it is the least used and least understood among many customers. There are quick features that customers can benefit from, such as anomaly detection, but they can also add their own models, which some customers perceive as complex because they do not understand machine learning models and need to have data scientists on their teams to utilize that capability. If a customer uses machine learning in Elastic Cloud (Elasticsearch Service) heavily, they will find that it is very fast to get results compared to using other tools.