I don't know how bad CircleCI is, but if it is worse than GH Actions, then that's quite an achievement ;) GH Actions kinda works, but I don't know who it has been designed for (especially compared to much more mature solutions like Gitlab CI). On top of that, GH Actions VMs seem to be extremely performance-throttled, and it can take forever to get a free Mac runner. It's hard to imagine how another CI service can be any worse TBH.