Similar situation for me. But I kept using gitlab.com (I didn't want to maintain anything more than I have to)

At $work-1 I had been managing ~800 github repos with circleCI integrations. I was reluctant to stay on gitlab, especially with the hilarious down times in 2018. Two things kept me on there:

1) the runners

2) the ease of organising repos into projects

Now that the SRE team are up to scratch, I don't think I'd go back to github.