There is a clear productivity hole for me since google removed godocs until I discovered godocs.io. In the meantime, I even did a chrome extension to make the new site more readable.
It was sad how they ignored the feedback. It felt like a designer that didn't use go documentation daily designed the site. The worst part is they never explained why.
godocs.io deserve to have a direct link in the http://golang.org/ site.
OP site looks inferior to the official one, maybe I'm missing something.
Edit: why am I being downvoted?
They closed the issue and asked to write it again while ignoring the concerns.
In general, I think a few of us are disappointed. It felt like some marketing guy at google deciding to use GO to promote the company and replace one of the boring doc services with something "cool." It felt like developers were no longer driving the project: Now is a Google project.
To the day, I don't know why they decide to kill godoc.org instead of improve it like OP.
For me, godocs.org should be in https://killedbygoogle.com/
Said replacement was created because there were people who didn't like the change, and so fixed it themselves.
Edit:
Also a heads up: People on HN tend to take questioning downvotes poorly, and the site guidelines say to not do so.
In this case, it's probably because you didn't look into OP at all before commenting, and completely disregarded both your parents comment as well as the OP.
Neither is strictly "better" or "worse", but they are different. I dislike the fixed banned, that stuff animated, and various things. Right now it's broken because clicking a header makes that header sit behind the fixed header (maybe a feature? I think it's confusing). I just want a basic HTML page; it works well for me.
Normally I'd fix this with some Stylus CSS, but the site changes (and my CSS breaks) what feels like every week. So, I set up a redirect from pkg.go.dev to godocs.io and my life has been better since.