I bought the Planet Bike Freddy ATB fenders for a mountain style commuter bike and they work well enough. The good is they come with enough hardware to fit most bikes and they do keep the spray and water off. You may need to trim the fender stays so they don't get caught on your clothes since the rubber ends fall off. My biggest problem is they are to flexible, if I hit a bump they hit the tire because of this flexibilty. Would I buy them again? The answer is no I would go with SKS which I have on my 3 season commter bike. They are 45's for 32 c tires and are much more stable. Though not a fair comparison since they are different size fenders.
In my mind they SKS is better quality but with that said, you can't beat the price of Planet Bike gear. The PB was half the cost of what I would have to pay for SKS.