I have many Vantec's
I have about 6 external Vantec enclosures. Only one failed on me, but it was an older version. Luckily I had two of them so now I have to power cords for one! (Think positive)
I love my EZ Swap enclosures except that on Vista X64 I could swap them while in Windows and it would recognize, but now that I've moved on to Windows 7 X64, it no longer does that. I have to boot the computer with the drive already in. That's very annoying!
I have four 2.5" enclosures, and three 3.5" enclosures. (including the one that failed). All of them have been a simple pleasure to use and none of them are slow in any way. The great thing is, at least at the time I ordered mine, the EZ Swap IDE versions are only 14.99 from Newegg! That is insanely cheap for such an amazing product. The included carrying case is functional and small and the cord fits in it nicely as well. Vantec is the only company I turn to when its time to buy an external anything. Soon I'll be ordering a external 5.25" enclosure for a portable Blueray burner.