It was similar when I tried it the last time. I reported the bugs and most got resolved quickly by the maintainer, but in the current state I wouldn't recommend it for anything serious.
Sadly, there aren't many well-maintained GUI libraries for Go. And even less that don't have dependencies on something like GTK or that don't use HTML and a web view.
I wish the author best of luck with this project, I'll check it out again in half a year or so.