But when people say that GitHub has better UI, they're more talking about the clean menus and intuitive UI. Some of it might just be getting used to one design over another. Although, BitBucket to me has always felt too cluttered.
I understand that people would be annoyed by a forced switch, github has a working issue tracker, wiki, and not to mention the awesome github pages. But, I just think loosing them is not that dramatic.
The opening/home page of Github is still better though. What really got people into Gitlab was the self hosting. Github has depended on selling their enterprise version. I was at a talk where Wanstrath said something to the effects of their expensive enterprise version that only people with money to spend need. .. (Years after I left my job at a state university ... they bought a license. -_- I hated how they paid for a lot of stuff they didn't need).
Even though Gitlab may lack in some UI elements, it's more than good enough and it doesn't hinder work. I'm at a shop that still uses the community edition too.
Gitlab and Bitbucket really cut into Github's model. There are more clones out there now too. If you really want a self-hosted Github like UI, there's Gogs too.
Github's UI makes sense. I can find anything in the blink of an eye and it's blazing fast. The team I'm currently working with is completely fed up with Gitlab.
As for the interface, we're working on improving the design of the product and have just hired a UX Researcher to help with that. Would be happy to hear any specifics you have to offer.
I do file bugs against GitLab every now and then, but I haven't done so for this one because I assume that there's an existing item on file for this (and I don't care to look for it) and that this is all part of the the longstanding, "Yeah, we really need to work on our frontend story, especially for mobile."
The end result is that just don't keep GitLab tabs open. Which is a little obnoxious, given the well-known issues with how slow GitLab is to complete requests.
The Gitlab UI is /fine/, but the speed is what gets me. On github, even if I have thousands of commits, the UI is instantaneous. If I click on something, the load time is less than a second for me. So I switched to Github and paid for the private repositories. I absolutely didn't mind paying for this since Github is so fast for me and seems to be adding pretty cool new features (code review enhancements on PR, for example).
I still have one of my repositories on GitLab and it's still slow when I do things like browse commits, view source files, etc.
It's not just Gitlab though. Bitbucket is pretty slow for me as well, though not as slow as Gitlab. I would guess that Github's caching algorithms are much better than either of those two to really make pages seem snappy.
There's only so much you can solve by throwing more hardware/money at the problem. We have reached a point where we are wasting too much of this, so adding more won't help much.
> (or put some devs on fixing their backend)
We have plenty of people working on the problem, and for quite a while now. We're also hiring more developers to help us out with this:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests?scope...
https://gitlab.com/gitlab-com/www-gitlab-com/merge_requests/...
https://gitlab.com/gitlab-org/gitlab-ce/issues/25421/
There's also this old (and closed) issue which contains a lot of information: https://gitlab.com/gitlab-com/operations/issues/42
The GitHub ecosystem will be the biggest hurdle for GitLab to overcome. (Disclosure - I work at ZenHub)