Jim Shore wrote about why he doesn't like Cruise Control. I agree to some extent with his points that the reason teams use it is to catch build errors and deal with "slow" builds. Having implemented both Draco.NET and CruiseControl.NET and toyed with FinalBuilder I am not overly impressed with any of them. My impression is that I spend way to much time fiddling the build server for the value added. I will say that I would still implement a build server for any team for the single reason that "people are fallible". People forget to commit related changes, or add files to CVS, run tests, etc. The build server never does.