We're using the latest build at work. I have really like Gitlab's merge request system. Their experience is pretty straight forward and they fixed a lot of the scalability issues with the built-in wiki.
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.
