I can't say about the newer machines, since I don't own anything newer than 1957. However, I haven't had any problems with generic walking feet. Also, I use a short shank Singer walking foot on my Pfaff 130 with no problems.
We have walking feet on our machines at the guild charity quilt workshop. One thing that I have learned is that those walking feet with a plastic instead of metal part where the foot attaches to the sewing machine's shank will wear out, and that piece will eventually break off.
I agree with everyone that you definitely do want to use a walking foot for quilting. There is just no comparison in the ease of quilting and the quality of your product.
Dayle