This is my third 500GB external USB2 2.5inch hard disk unit and my first LaCie Rikiki. Its 500GB predecessors are in daily use. This one is the neatest, most solidly constructed of the trio and it's silent, too. I recommend it highly.
At the £45.80 I paid for the complete unit, it's a bargain. If you bought a bare 500GB drive you wouldn't pay but a few pennies less, and then you'd need to buy an enclosure and a connecting lead.
The length of the connecting lead, measured to the extreme tips of the plugs is exactly 7 inches. That's perfectly adequate for connecting to a laptop on a desk.
Some reviewers have remarked that the formatted capacity is 465GB, not 500GB. All hard disks are discrepant in this respect. A hard disk manufacturer's gigabyte is 1,000,000,000 bytes (10^9), but the traditional computing gigabyte used as a unit of measure by Windows is 1,073,741,824 bytes (2^30). 500,000,000,000 divided by 1,073,741,824 is 465 and a little loose change -- hence 465GB.
Some reviewers have remarked that the instructions are skimpy. It's a disk, so there's not much to say. This Windows user connected it to a USB socket and let its software autorun. It formatted the entire disk as one NTFS partition, into which it expanded the reference materials and the bundled software. I didn't time the formatting process, but I doubt it took more than five minutes. I haven't bothered to use any of the software bundle.
I'm using the Rikiki with a Lenovo ThinkPad T410 running Windows 7. No problems at all. However, all rotating machinery fails in the end, so do be sure to back up your data.