I bought my first Bernina, a 153 Alex Anderson version, in 2004. I really liked my Viking 930, but it didn't have a few of the quilting-specific features. Once I started quilting, I really wanted those helpful aspects for quilting. When the 570 came out, I bought one to get the thread cutter, stitch regulator, wider throat space, and some of the other cool things. But like so many, I really hate the wide foot that isn't good for piecing. I have resorted to using the 153 for the piecework and the 570 for quilting. If I had it to do over, I wouldn't buy the 570. I will never do embroidery, so I don't need that aspect of the machine. Also, I found the user's manual to be terrible. It is so hard to try to locate answers to my problems, but the 153 was quite user-friendly.
Leslie