After looking around for a budget hard drive I saw this one and, being Lacie, decided to it was a bargain for the cost.
I cannot comment - yet - on the reliability as I have only used it for one evening but would be surprised if it were to fail. I sold Apple kit for 10 years and Lacie were one of the most reliable makes going. Given that I tend to hammer such devices the first time out of the box to make sure any initial problems show up and that I spent around 5 hours almost constantly writing and erasing it on my iMac, it appears to as reliable as the 500gb Maxtor and 250gb Verbatim currently in use.
Performance wise it's streets faster than the Maxtor drive and a little faster than the Verbatim (so much for small drives being faster!) is quieter, runs cooler and is a much nicer box to look at. Cannot fault it in any way and highly delighted. It even has it's own power switch with many other drives don't.
There is one small, minor and mildly niggling problem however. I have just upgraded to Snow Leopard and the utilities installer fails every time. Not a big deal as Apple's Disk Utility partitioned and formatted it without a glitch and it's possbile to use Carbon Copy Cloner to do backups but given the lead time to Snow Leopard it would have been nice to see Lacie acknowledge this on the box or provide new software with the drive. I have not had time to check Lacie's web site but they may already have new software or be working on it.
Even with the lack of Snow Leopard software compatability I must give it a top rating. If I am proven wrong on the reliability I will re-review and apologise but I don't anticipate having to do so.