I machine stitch most of my bindings. I cut the strips 2.25" wide and fold them in half. I sew the binding to the back with a very scant 1/4" seam, turn it to the front and top stitch very close to the edge. I try to use a color that matches the backing on my bobbin and the binding for my top thread. Alternately, I use the same color as the quilting thread. The line of stitching never hits the binding on the back of the quilt; it just runs parallel with it. The corners look perfect. I may be rationalizing and I have no proof, but I like to think that a machine-sewn binding is sturdier than a hand-sewn one. I do prefer the look of a hand-sewn binding, but I hate doing it, so usually I don't.