I have been using PowerBlocks for over 12 years now. I started using them after following along with Fitness Blender workout videos. I love them and will not use anything else. They're just so easy to use and make sense rather than having to store multiple dumbbells. I had the verson that went up to 50 lbs with the 5-lb increments, but I bought these because of the 3-lb increments. Through the years, I have gifted Powerblocks to family members, and they have loved them, as well. The price point buying directly from PowerBlock is the same price as you would get from Amazon, so that is why I chose to buy directly from the manufacturer. The shipment arrived on time and it was packaged properly. I do not have any complaints. I love my new set and highly recommend!