I baulked at the on-line documentation for downloading and creating an install image. The DVD arrived quickly and the install was painless. I've had lots of experience with other non-enterprise flavours of linux, e.g., ubuntu, debian, etc., but CentOS is my favorite by far. It is as close as you can get to RHEL without shelling out the dough.
Nice interface. Installed quickly and professionally. I have very slow connectivity at home and the firewall at work is hard to work around. So this was $10 well spent instead of burning my own from download.