I am impressed with how comfortable an ab roller can be. I have tried numerous other ab wheels, only to find out that the handles were sharp, wiggly, and too small. Not only are the handles comfy, the wheel itself is stable because of its width and weight. Normally ab wheels are narrow, making me feel like I'm going to fall over from either side at any minute. This wheel makes me feel like I am in control. I have just started today, and I can already feel the burn in my abs, upper chest area, ba...