This is a report from Japan (machine translated).
We have an iSCSI connection between PureStorage C60 and a file server built on a VMware virtual infrastructure, creating an SMB share and using it as a VHD storage destination for CloudCache. The file server uses SOFS for load balancing and redundancy, and PureStorage is configured with two enclosures.
We used to create SMB shares on SAS storage and attach the VHD directly, but since switching to PureStorage & CloudCache, the login speed has been reduced by about 40-50%.
PureStorage is perfect because it is capacity efficient due to good deduplication and has good stability so far.