This is pretty good. I think as a technology, we should focus on the pros and cons, and why was it introduced. I think it was introduced to keep a single library for each client and server, so the changes are centralized, unlike REST. Pros: It is fast It uses http2 under the hood Single library for each client and server maintained by google Cons Protobuf makes the client bulky No direct use of JSON, it won't make sense for the client to know the schema No browser support YET It is new and growing Proxy Support, as any application deployed is not just simple client and server so, the proxy or gateway layer should understand the protocol as well I believe this is a pretty good piece of technology for microservices intercommunication as it is fast and can reduce the latency in communication.