Summary: I use this with Time Machine on my Mac and it works great. Haven't had any issues what so ever. Time Machine likes Firewire disk better than USB it seems, and this has worked well. Basically I've hooked it up and forgot about it. Hopefully it'll never fail.
Summary: This is a very fast backup drive. And it's quiet too. There are always so many purring electronics around these days. But this is hardly noticeable. And it has a ton of storage capabilities. I reformatted the drive (which I usually do) and didn't have any issues. Nice, compact, quiet, fast backup/storage drive.
Summary: I've used a half dozen or so of these over the last year or two. They generally work pretty well, albeit with the pretty serious caveat that mixing and matching drives to their bases is unreliable - the result is often that the drive will abruptly cease functioning, causing data loss and requiring you to unplug and re-plug it to the computer to get it back again. But so long as you only use the drive & controller that shipped to you together, they seem to be reliable.
It's a drive, it gets backed up... but it wasn't easy to set up for Time Machine
Personal Robot, Amazon
24 April 2013
Summary: I'll keep this simple for those who, like me, wanted this for use as a Time Machine backup. This required a lot of setup and tweaking that I didn't expect. Seagate wants you to use their weird software but what Mac user is going to do that? I complicated things by moving my current backup from a 1.5tb drive to this drive in order not to lose a year's worth of backups, but that only changed things a little bit.
Summary: This is not an intuitive product, and I'm a little computer illeterate so it took me a while to get it working. Nonetheless, once I did I do like it. It does work with MAC and Time Machine. Do yourself a favor, read what you can about it online before you try to install and get it working, you'll be glad you did.
Summary: When I bought a new iMac with thunderbolt available, I wanted to move away from Time Capsule. Time Capsule was perfect for my MacBook Pro, although a bit slow. The Thunderbolt backup is amazing, a full restore from the Time Capsule would take almost two days. The initial back-up with the seagate thunderbolt took 23 minutes. The hourly backups typically take about a minute, and since it is directly connected to my Mac, my network is not degraded.