I took a long time comparing adjustable dumbells before deciding on Ironmaster. I like the traditional feel and quality whereby once loaded the dumbells feel similar to the individual dumbells found in a commercial gym. The square shape is an added bonus as the dumbells stay put when you place them on a bench between sets without risk of rolling off. Having purchased the dumbells I also bought the superbench with attachments, This combination is extremely versatile facilitating a wide rang of exercises, and I find it perfect for my home gym. I am very satisfied with the quality and finish of my Ironmaster equipment and consider it money well spent. I would also commend Valley Fitness on their after sales service resolving a minor issue promptly, pleasantly with no inconvenience to myself. A deserved 5 stars.