I had my lexar jump drive for about 6 months, and I have *never* had any trouble with it (the only reason I no longer use it is that I recieved a larger 1GB unit for Xmas). This plucky little drive was always reliable and never any trouble. As for other reviewers' comments, I cannot image the abuse they must have put this thing through; I'm a biology grad student, and took this drive with me during fieldwork in Guam. I even accidentally left it in my pocket while out collecting snakes from the brush or testing them in the baking tropical sun.The only significant downside is that the drive is very chunky, and as a result it may have trouble fitting into USB ports surrounded by other equipment or even with adjacent USB ports in use.