I preferred mag brakes over cent brakes simply because of the "mess around" factor inherent with cent brakes. Go from a 1/4 oz lure to a 1/2 oz lure, adjust the brakes, to a 3/4 oz adjust the brakes, back to a 1/4 oz lure, adjust the brakes, ad infinitum. Mag brakes, keep on minimum and use the brake God gave ya.
That said, I used the new Revo Premier with dual brakes and it's a whole new world. Unlike the bulky, clod-hopper Shimano cent brakes, the Revo (and Pflueger) cent brakes are significantly smaller, precision type brakes. Sort of like the difference between those old, Soviet-style, basketball-sized bearings and the exponentially smaller and more accurate U.S. of A bearings.