ADA: Threshold Ramps

I just discovered these BigHorn threshold ramps, but haven’t tried them yet.  Anyone else know anything about these ramps?  

BigHorn™ Ramps use advanced recycled composite technology offering the newest in safe, light-weight residential threshold transitions with heavy load capabilities. Designed for superior slip-resistance, StoneCap™ coating technology incorporates ceramic coated quartz crystals, offering an enduring surface that is UV stable and guaranteed not to crack or fade.

BigHorn™ Ramps modifies existing thresholds up to 1 ½” and has molded traction pads for both slip-resistant protection and visual appeal. A Gradual tapered front edge with molded 22° side slopes provide safety and access with an attractive finish.

Unlike metal or aluminum, BigHorn™ Ramps will not freeze or become slippery in wet or cold environments. In addition, molded mitered ends provide a high quality finished product desirable enough for the most discerning of homeowners. BigHorn™ Ramps are available in attractive granite and earth-tone colors to accentuate any decor.