15-90 or 15-91's are very similar to 201's so it is easy to confuse them. 201's always have the tension disc on the front while this machine has it on the back. There are other small differences as well but this is the easiest one to spot. 15-90's were often referred to as the farmer's wife special while the 201 which was the more expensive machine of the two was called the dressmaker's special. Both are heavy fast straight stitch machines. I regularly use my 201 for mending and making buttonholes. It powers through coverall repairs and does not jam or break needles if the stitching is tough. You'll like this machine.