My Babylock Ellegante will take any thread I want to use, so rather than buying by brand as a criteria, I buy by thread content, and I use polyester most all the time rather than rayon, as I make lots of decorative kitchen towel sets and napkins, table runners, and place mats, which by their use, require frequent washing. If I am going to be making something like a wall hanging, etc., something that doesn't require frequent washing, then I use rayon or a combination of rayon and the polyester threads as I probably will have more color choices by using the two thread types. Polyester is also nice and shiny, so I do not find any great noticeable difference between the two types used within the project