Nice sleek design - though seems a bit fragaile. Work nicely most of the times on my two Win XP desktops and Win XP laptop. Sometimes when I connect to one of the computers, I get an annoying 'USB Device Not Recognized' error. Sometimes I need to switch to a different port and sometimes just to disconnect and connect back to the same port - and it happens on all systems as well. So I guess it's a device issue more that anything else - or maybe I just got a somewhat defective unit?
So far no problems in recognizing memory modules or in reading or writing to them and I used a bunch of different ones.

Overall I guess not bad for the price despite the annoying need to switch ports once in a while