Pros: Well-designed, compact unit. Attractive, functional. Allows any combination of PS2 and/or USB inputs and outputs --- and, unlike many other products, it actually works. Receives power from client computers, alleviating the need for a separate power supply. The product comes with two 4-foot cables and two 6-foot cables (contrary to the manufacturer's product description which say four 4-foot cables).

Cons: 1) Because it obtains its power from the attached computers, you have to power them all down when making any wiring changes (i.e. adding or subtracting a computer, or changing cord lengths, etc.)
2) The "auto scan" and "next port" functions do not automatically bypass unused ports.
3) There is no "previous port" function (which would be far more useful than "auto scan")
4) The proprietary cables are ridiculously expensive. A six-foot (combined) VGA/2*PS2/USB cable costs $20-50, depending where you buy it. In contrast, you can buy each of these separately for $1-2, for a total of $4-8.
5) One of the four cables included with the product came with a bent #6 pin.

Pros: None - toner is 100% defective. Prints blank pages

Cons: Toner is 100% defective. Prints blank pages

Other Thoughts: Return shipping costs exceed value of product. So much for the warranty.