Yes.
Start here:
http://www.symantec.com/docs/HOWTO127189
Product tour of the cloud piece:
http://www.symantec.com/docs/INFO4546
So far, so good. It adds an additional layer of security with the Intensive Protection policy and the new SEP Deception policies. The cloud portal and on-prem manager work together to provide more security/visibility.
Many good things coming down the pipeline from Symantec in regards to SEP. It has a very bright future and I think customers will be very impressed with the options available.