Earlier quoted context omitted.
What can we improve in GitLab to make it better? Did the install take too long? Did you try our Omnibus packages or a source install?
The things I miss the most using Gitlab vs github are the instantaneous merges and the syntax highlighting within diffs when reviewing a MR. I'm on an old-ish version of gitlab though and it's running on a single VPS.
I don't understand what you mean with instantaneous merges, did merges seem faster in the past? We do have a feature that allows you to merge when the build is successful, saving many people lot of time http://doc.gitlab.com/ce/workflow/merge_when_build_succeeds....