Works like a charm. I've had this for about a year now and am very pleased with it.
PROS
1. Faultless, invisible operation. You forget it's there making your life easier.
2. Auto-selects the source correctly and quickly. Mine is switching between cable TV, PS3 and Laptop. No button pressing or silly remotes (though you can force a source change with the button if you need to).
3. Price
4. It's tiny
CONS
Only two and this is a bit picky really, since it works so well. But I am a lover of form as well as function...
1. Because the cables connect from all directions it can turn into a bit of a four legged beastie (cables with 90° ends would mostly solve this). Mine appears to be suspended in mid air behind my AV cabinet, which isn't a problem (its inevitably a mess back there anyway). But if the connectors were all on one side it would be tidier.
2. It has an intense blue LED. Needless on a hidden object and is a bit distracting if you like a dark room for movies. Nothing a small piece of tape can't fix, but why is it even there?
But really, those are minor complaints. Overall this is a great solution.
I'd give 4.5 stars if I could. Very satisfied and would recommend this to anyone. I giggle when I visit a friend who has a switcher which needs a remote control to do what this does automatically and cost more than twice what I paid.