If you mostly write software with Go you'll likely enjoy working with protocol buffers. If you use the Python or Ruby wrappers you'd wish you had picked another tech.

The generated types in go are horrible to work with. You can't store instances of them anywhere, or pass them by value, because they contain a bunch of state and pointers (including a [0]sync.Mutex just to explicitly prohibit copying). So you have to pass around pointers at all times, making ownership and lifetime much more complicated than it needs to be. A message definition like this

    message AppLogMessage {
        sint32 Value1 = 1;
        double Value2 = 2;
    }

    type Example struct {
        state                    protoimpl.MessageState 
        xxx_hidden_Value1        int32                  
        xxx_hidden_Value2        float64                  
        xxx_hidden_unknownFields protoimpl.UnknownFields
        sizeCache                protoimpl.SizeCache
    }

    type ExamplePOD struct {
        Value1 int32
        Value2 float64
    }