They don't even do multi-node for node sizes smaller than 58gb RAM. Dedicated master is not available until the cluster size at least 6 nodes of 58gb RAM. Multi-master is not available.

I'm not sure if this is based on research or optimal configuration size, but it seems very expensive to get a 3-node cluster going on ElasticCo.

Does anybody have experience with compose? (https://compose.com/databases/elasticsearch)