The bad: its structure is (too) so light, so do not rush or want to change the hard drive ten times a day (the welds are certainly there, they seem low; It takes some force to plug the USB cable in the port of the housing; better use its own driver that provides (it could serve as a troubleshooting some time ...)
The good: is immediately recognized with XP, no driver to install; A small footprint; Power is supplied by USB port directly; A low price.
I certainly forgotten the details but the principal says. Overall I'm happy with my purchase. Furthermore, this case can perfectly serve as an external hard drive once bought a laptop hard disk (IDE port housing can connect a 44-pin IDE hard drive)!