We are using Gitlab for about half a year with Jenkins, and we could not be happier. We are about 50 devs working with it every day. It has some quirks (for example AD integration) but it has served us well, and we would not want anything else.
GitLab co-founder here, thanks for the comment y0ghur7_xxx. Please let me know if you have any idea's to improve Active Directory Lightweight Directory Service support.