Go is a great language with a great standard library. The big downside is, that you have to play compiler and write all the time boring algorithms yourself (because go has no generics).

    Want to filter a slice              -> do it yourself
    Want to map a function over a slice -> do it yourself
    Want to pop out a value of a slice  -> a[len(a)-1], a[:len(a)-1]
    ...

There are worse things in the world, still it's the reason why I don't use go any more.

More examples: https://github.com/golang/go/wiki/SliceTricks