Anyone has experience on DBClassify?

Does anyone have hands on experience on DBClassify, which was called ZettaPoint before? How do you think of it's accuracy to find out the IO  statitics comparing with the analysis based on AWR, which iss provided by MiTrend and SDC team for free.  From what I read, DBC can generate a XML file and be imported to Tier Advisor which need to give some credit. It's a paid serve, how many customer are willing to pay for that?

DB Classify is a tool used by EMC professional services to monitor Oracle and SQL Server databases and to provide database I/O classification based on business priority and usage patterns which is used to determine the appropriate tier of storage (Flash, Fiber, and SATA) that should be leveraged to achieve optimal performance. It provides detailed analysis of Top Wait Events, Storage Devices, Tablespaces, Objects, Indexes, and Partitions for Oracle and SQL Server. DB Classify enables database policy recommendations for storage tiers and database policy influence for FAST VP environments. Analysis and design recommendations from DB Classify are leveraged by DBAs and Storage Admins.