I have the Brother PQ1500s and it is perfect for what I need. I have mine actually set up on a frame and do my quilts with it. I can do up to a twin size on my frame with it. Nothing fancy. No problems with tension. Love it!!!!!!! I have another Bother machine I use for piecing. I have had my set up for about a year and a half now. Best money I have ever spent. It has paid for itself over and over again, without having to send my quilts out to a professional.