Has anyone had experience or any knowledge of the Rollers made by SportCrafters. Everything I have read seems good, however, nothing beats someone who actually owns or has owned the product. I am looking at their alluminum roller model. The diameter of the rollers is 3.25 inches with 3/4 inch axles and sealed bearings. I cant afford the Kreitlers and these go for 180 bucks. Thanks in advance for insights.