Taking investment is not success though. Maybe one day Gitlab will exit (most likely outcome). Maybe one day they'll be profitable. Those days are not here, and that would be success. That has not occurred yet.
We now know what GitHub was worth, and it puts the lie to inflated valuations in this space. When $8Bn is a huge deal for your industry, it gets hard to sell higher valuations with a straight face.
GitHub makes most of its revenue from the self-hosted market. GitLab is burning this market to the ground.
GL Ultimate pricing is $99 /user/mo [2]
[1] https://github.com/pricing/enterprise [2] https://about.gitlab.com/pricing/#self-managed