I've installed the magnia power slide but am wondering if people prefer the others for any reason. The pro arc seems cheaper, the lemans more common. My supplier richelieu has all three but can't tell me anything about them........
I just used the Lemans unit in a kitchen cab build for a customer. I was able to see and operate all the units Richelieu offered at their in store display and this was by far the smoothest and easiest to access. The shelves pull out opposite the door. Installation was very easy. There was a reason it won the Red Dot Award when it was brought to market.
I second the LeMans. I have spec'd (as the Architect) and personally installed about 5. The clients love them. Make sure you get your clearances right for the specific size and for frame or frameless cabinets. Don't forget any corner fillers to allow the door and adjacent cabinets to open fully.