I've had this experience one to many times. And in self defence my code doesn't look ugly even when I've just written it; I don't have to come back and "clean it up".

I wrote my solutions to tour.golang.org at gist.github.com

How quickly I've picked up Go

I started writing Go with the cononical hello_world.go program on Jan 11, 2016.

I wrote a working B+Tree implementation in Go on Feb 11, 2016.

So I would say it took me 4 weeks to become "productive" in Go. I still need to use the Playground to work out small issues with Go syntax every now and again.

Testing Gist & Go Playground

The Gist:

The iframe embed of Go Playground heigh=500