Maverick, is the Iomega USB you got the original drive from a year ago, or is it the newer Predator model?
I suspect a lot of peripherals will work fine with a lot of different computers. It is how many different computers and software configurations they will work with that says something about their overall quality. In my case, the Iomega was a disaster, and looking at their own forum pages showed I wasn't the only one with problems. And, tech support was pretty bad. But, somebody with a different computer/configuration may find it works great.
Before anybody buys an Iomega, I suggest looking at Iomega's own forum pages. To their credit, they seem to censor few if any of the many very negative comments they get. To their discredit, they also seem to do little to help people out there.
I suspect, too, that two supposedly identical drives from the same company may actually have been made by two different manufacturers, which may account for differing experiences.