vRO is finally here (old vCOps). There is a lot of changes in the new GA so try to review the releases notes and the new documentation:
https://www.vmware.com/support/pubs/vrealize-operations-manager-pubs.html
There is a new sizing guide with 4 new sizes from Extra-Small to Large
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2093783
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2093783
The main different with the las releases is that right now there is only one VM instead the older 2 VM in the the vApp version.