GitLab's UI is pretty terrible, even compared to the not-so-great-either BitBucket UI.

GitLab's UI/UX is regressive to the point that when you visit a repo, you have to click another link just to see the damn sourcecode. It's as though they ignored every advance in source-code UX post-Sourceforge.

The stacked global and per-repo sidebars are confusing in a way that baffled me for several minutes, as well. They need a serious rethink of their UI/UX.