Which Continuous Integration System To Use?

What continuous integration system to people suggest I use?

From what I can tell their is continuous_builder, CIA (continuous integration automater) in the rubyonrails.com repository. Plus, their are others like DamageControl.

What are people using? What do people recommend?

Thanks :slight_smile:

There is also cerberus, which is in Ruby and is quite cool :slight_smile: