What I notice most about using clipless pedals is that they keep your feet properly positioned on the pedals even when going over bumps. It is surprising how much your feet "bounce around" on platforms after you have been using clipless for a while. If you have just started riding with clipless there is only one certainty; you will fall over (a couple of times ) until releasing your cleats become second nature. Like everything else it just takes practice until muscle memory sets in and then you will never look back at using platforms.