I'm in the same boat as Solomae & feline fanatic. I have the Queen Quilter18 (Tin Lizzie) & she's not a thread snob, but just absolutely loves Glide! I use the magna-glide pre-wound bobbins as well. The price is great! Most large cones are $7.20 each. I love the little bit of sheen to it too. I've used Permacore, YLI & King Tut, but I keep coming back to the Glide. I just don't have any issues with it, tension is always good, both top & bottom.