I find it hard to be convinced to use GO at all. If i wanted efficiency, i'd bite and go with something close to the metal. If i wanted something that can build huge applications and has a rich framework ecosystem - i'd go with Java. GO seems like a middle solution for some exceptional cases, which i haven't deal with.

It is a fresh language and i quite enjoyed exploring it, but i just can't see the use of it. (also, the multiple return value functions are great, but if only there was a way to use a particular value directly from the function without having to assign them to variables)