I have tried to machine bind the quilts for the same reason, lack of time, but I am never happy with the results, compared to the hand stiching. I have a friend that uses the backing for the binding, and she does a beautiful job. I have a problem catching the quilt top, so I found if I trim the side of the quilt even, instead of leaving a quarter of an inch of batting and backing, I get better results with maching sewing, but I still am not happy with the corners, so when I can, I try to hand sew. If I sit and sew and do nothing else, I can get a full size quilt hand binded in 8-10 hours.