Pros: It does what is intended - I can indeed use both 24" monitors off of 1 VGA output from my laptop. Based on my research nothing else on the market is offered so that is a plus for Matrox.

Cons: So far I can't seem to get the taskbar on a single screen. As the internal graphics card is disabled when in use, the input shows as one screen in the display settings.

Overall Review: I was very leery to purchase this product based on the many bad reviews I have seen online. I am glad I gave it a shot though as I can now view my desktop on two large screens and at 3480 x1080 which I will never use. Looks fantastic now that I am not viewing a maxed out laptop screen on a single 24" monitor.