Be sure to read the last update. The original review is below:
This is the first "Big Name" pure SSD drive from a mainly hard disk manufacturer. Up to now they have all come from memory, chip (Intel) or flash drive (SD, USB thumb drive, etc) manufacturers. Samsung makes more memory, flat screens, and other "stuff) than hard drives, so I put them in the memory/chip manufacturer category. Their SSD's are also excellent.
The drive itself is quite thin. This is the 7mm version and it's also available in the ultra-thin 5mm thckness. It should work well in most ultra-thin laptops. The idle (1W) power consumption is more like a conventional 5400rpm drive so battery life in Laptops and mobile devices may not be helped much.
I'm thinking that in the speed vs power tradeoff, Seagate went for speed. This might be a better choice for a desktop where power savings isn't so important.
I just installed the 480GB ST480HM000 for a client in a Dell Precision laptop. It is a very fast drive. I own a Sandisk Extreme purchased fall 2012 in my own Dell Precision laptop and this drive is noticeably faster out of the box. Both are on Windows 7 64bit with 8GB or better RAM.
My continuing concern with SSD hard drives is the flash memory has limited lifetime with writes. This concern decreases as the technology improves over time and I expect this SSD will be better than the older one in my own laptop.
Installation was simple. I used the (Apricorn DriveWire USB 2.0 to IDE/PATA/SATA Universal Hard Drive Adapter ADW-USB-KIT (Red) to clone the client's old drive. I got the latest version of the EZ-GIG copying software (4.13 at this time). EZGig and Apricorn make the cloning process simple but is flexible for custom layout changes.
The only issue I had in cloning the drive was I needing to change the drive mode in the BIOS to IDE instead of ACHI. After the drive was cloned I was able to install the drive and change the bios setting back to ACHI. This drive was not recognized until I did this.
I'll update this review in a few weeks as the drive gets settled-in on my client's PC.
I hope this helps someone.
Update Aug 17 2013:
The Seagate 600 I installed is still operating well and without the noticeable slowdown that sometimes seems to happen with SSD drives over time. It is operating completely uneventfully.
Update August 20, 2013:
A note about warranty and OEM drives.
I was called today by Bryce Stoops of the Seagate Corporate Escalations Team. We had a good conversation and he clarified Seagate's OEM Policy and how it is supposed to work. What Seagate means by a OEM drive is the drive is sold to a systems integrator like Dell or HP and they have an agreement where all warranty claims go through the integrator. These drives sometimes have custom firmware.
The "bare drives" typically sold by Amazon are not OEM drives. Third parties selling through Amazon may sell them, for example, from a manufacturers excess stock.
This became an issue for me when I had warranty problems reported in my review of the Seagate Momentus XT 750GB ST750LX003. These were eventually resolved, but made it certain that warranty matters when things go wrong.
Seagate drives are great, but on those rare occasions where problems come up warranty matters.
Update: December 12, 2013
My client is still very happy with the Seagate 600. It is still "wicked fast". Power isn't an issue since his huge Dell laptop is rarely used on battery. It's more a desktop replacement.
Other SSD's are out now that are a little faster, little larger, use less power and are a bit less expensive like the Samsung 840 EVO.
Update: December 25, 2013
I noticed the price of the 480GB model has dropped about $70!!! This makes it about $40 less than the Samsung mentioned above rather than about $30 more and much more competitive.
Update: February 7, 2014
I have checked the pricing again and the Seagate 600 480GB model is now at about $342. The comparable Samsung 840 EVO is only about $310 reversing the price ratio by about $32 in favor of the Samsung.