It passed muster because not only did she try it on, but she kept it on for the rest of the day.
I finally feel like I have nailed stretch sewing. Using an overlocker for the seams was a big help but using twin needle for any hemming or to apply the neckbinding is the clicher to turning out a nicely finished garment. The twin needle means you see two rows of straight stitch on the outside of the garment (which looks nice) but underneath the bobbin thread zig-zags between the two rows of stiching. This provides enough "give" in the top stitching so that the threads dont snap when the fabric is stretched.
