Brought one of these 3 1/4 years ago and its been a superb device. It's not the fastest of drives (2.5" 5400 rpm seagate) but is nice and compact case which feels sturdy enough to protect the drive from most types of damage, it runs pretty quietly and doesn't get overly hot.
I haven't checked the voltage usage on this compared to other models but have a feeling that it may be a little higher than some other models which may be worth considering if you are a laptop as it may drag the battery life down a bit.
The drive has, over the years has had some serious use, as it was regularly shared about at work with people borrowing for various projects and the case as tough as it was, still got heavily scratched (but never dented). Unfortionately the hard disk broke after 2 1/2 years. Fortionately the 3 year warrenty was honoured and IOMEGA happily replaced it with a 150gb model with a 7 day change round in Holland.
So good drive, good warranty, and really good customer support. I would highly recomend either this drive or any other that IOMEGA sell as the customer support was so good.