cool, mine's from a spanish supermarket that I bought when I was about 14
The main advantage of a proper copy stand is that it has spotlights attached. You need to make sure you get the lighting right, which can be hard if you're photographing something that has a glossy surface or isn't 2d
The other thing to note, if you're photographing something 2d (ie paper) you need to make sure that your camera is in the centre and looking directly straight on. Otherwise it won't look quite right.
Don't rule out using a scanner either, may give much better results