i've tried both the HQ and the epads.. personally, i prefer the epads as they do not give tt much rebounce as the HQ one. even though the HQ dual side one of the side (black color) do not give tt much rebounce also, its quite noisy compared to the epads. the epads really work ur muscles to improve urself as you have to rely more on ur fingers rather than the epads.. its not as quiet as the HQ real pad, but the volume is still acceptable=)
ultimately its still ur own choice as to which pad u want to use, but i would definitely recommend the epads =D
by the way, i bought the HQ double sided pad for about $50+ dollars.