I'm quite happily using a self-hosted Drone (drone.io) instance, though I don't have much experience to compare it with with other CI systems and my use case is probably not the most sophisticated one. Team is quite responsive, especially considering I'm a free tier user.
I really like Drone. The way “drone exec” works for local builds is really good. Hopefully getting bought by Harness doesn’t ruin it too much, but they already seem to be setting up to split it into versions/tiers.
Almost all current CI systems suck at building Docker containers :-(
