3 weeks and have used this machine a few times. no problems at all so far, but have only tried basic stitching and small projects. Have not used it for large project such as drapes, quilting, etc yet, so not sure about heavy use. Jeans hem and a patch were fine. Sewing through 2 layers denim and it functioned fine. Easy to change stitch, foot, needle, no tangling. Perfect for my usage.