I have one, I like it, and use it all the time. Here's a tip. In the picture, notice how the guy grips the bar so that the his index and middle fingers straddle the bar? Don't do that. I've noticed that on heavy sets, my shoulders still get fatigued holding the bar and/or I start leaning forward slightly. Bad form, I know. What this does is cause some of the weight to shift toward the hand and puts a LOT of stress on the knuckle joint of the index finger. Instead, rest the bar in the V between your thumb and index finger.