I really like GitLab and are rooting for them, but if my experience the last couple of weeks of exporting/importing projects is any indication, a ton of these imports will fail, or even worse, appear to succeed, but partly fail.
One of the most disheartening things is seeing issues like this: https://gitlab.com/gitlab-org/gitlab-ce/issues/43270#note_75...
> Pushing this back to 11.1 since 11.0 is full with major release requirements.
If there's one way to lose new users, a good way to go about it is have their imports fail. My case was Gitlab -> Gitlab, hopefully their Github -> Gitlab is more resilient.