I have used Symantec Endpoint Protection for 5 years. The guy who's job I replaced bought a 5 year contract. The management console is mostly useful. It shows monitoring and conditions of computers. Mostly eye candy.
Room for Improvement:
Doesn't protect against viruses. I have spent a lot of time cleaning up computers from malware and viruses using other tools. I usually use Avira, Malwarebytes, and Combofix to fix issues SEP couldn't detect. It usually detected 5/10 viruses. The management console wasn't very powerful. Sometimes I would have to manually update computers because SEP would error out. SEP is mostly a virus in itself. It's detection engine uses so much processor and RAM, it's faster to uninstall it than use it as anti-virus.
Use this if you need to keep yourself busy by running around fixing viruses. Right now I am using a combination of Immunet and Vipre antivirus. Much cheaper and easier to use.