It is the same machine as the BlockRockiT--the same company makes both. Kathy Quilts designed the machine and Grace manufactured it for them and now they are selling it also under their name. I have the BlockRockiT and am very pleased with it. The throat is 14.5 by 8.5. It has a built in stitch regulator with Cruise, Precise and Manual modes. The support, both with Kathy Quilts and the Grace Company is superb. The folks from Kathy Quilts are traveling to a lot of quilt shows demonstrating the machine, so watch and they may show up at one near you. I enjoy mine!