Top 3 advantages of microservices

• Zero Downtime Independent Deployability: Helps with scaling each service independently to handle unequal load.
• Reflect your team's structure: Each team can maintain only their set of service(s). CI/CD pipeline needs less resources as compared to monolith.
• Self-contained data & logic

Top 3 disadvantages of microservices

• Infrastructure complexity
• Latency
• Risk of failure cascades

How to distribute services?

By embracing Domain Driven Design and defining bounded context(s) after event storming which is done by involving all parties (domain experts, texh, ui/ux, etc).

Each context gets it's own service.