Have replaced by this SSHD Seagate internal drive an iMac 21.5 (mid 2010). In that iMac a 500GB Seagate Barracuda 7200 RPM werkelte which has then been adopted. I have an experimental basis for this disk, type SSHD decided. There is a significant difference in speed to the standard HDD and very good values in comparison with my MacBook Pro with SSD configuration.
Example: MBP with Samsung SSD 840 120GB, boat in about 17 sec., 5 sec Start Photoshop iMac with Seagate SSHD, boat in about 19/20 sec .. Photoshop start about 8 sec.
If this value remains stable, which for me is a dreamlike state for the price / performance ratio and I would provide more boot devices with sshd. Clear recommendation!