Any Visual Build, FinalBuilder, ABS users?

I am testing Visual Build, FinalBuilder and Automated Build Studio for automating our builds. I was wondering if there’s anyone here who has used any of these before. I just started testing VB and FB, and checking out modules from our CVS repository is taking waaaay too long. I am beginning to wonder if these tools are really an advantage (i know i still have a long way to go).

But anyone know any cool features I should be aware of, coz the help for all three sucks. Or any uncool features I should watch out for?

Note to mod: I know this is an IMHO type question, but I figure the techies tend to hang out in GQ. Move the thread if you must.