The only folks that liked the product were the Symantec SE's that were fed the kool-aid. Well that and some of the original customers where they still had a fantastic server and desktop backup tool, that got deprecated in favor of Ghost and BackupExec, what a joke and huge step down in functionality.
The product was overly complex, required a lot of server hardware, invasive on the desktop, and very slow to adopt new OS's from MS (It took more than 2yrs to support Win2k8). Then to make matters worse, Symantec was pushing it to all their AV customers and BackupExec installs. Saying that Altiris is the best way to deploy software. NO THANK YOU and good riddance!