I have Freddy Fenders on my bike. They work fine, but the install was a hassle because I have disc brakes. On the front fender I had to use pliers to bend the support so that I routed it around the brake. I think I was pretty lucky and I have no confidence I could do it again without mangling the support. On the back I only used 3 of the 4 supports, ditching the one that would have needed to be bent around the brake-it works fine and is stable. The fenders do their job. I haven't tried the SKS, but I hear they are very good. I went with the Freddy's because they were easier to order.