PS went out on a Compaq server, Compaq overnighted the replacement. Wasn't a critical issue, the server the PS was on is a backup server in case the main one went out and the third power supply on said server is redundant.
Something was screwy on another server so we RMAd it. New was to us the next day as well.
Seems like good service to me.
But don't get me started on trying to trouble shoot some of the desktop Compaqs we have....