Then, the shoulder-strap broke after three more uses

On another site, the shoulder strap was criticized as not being able to carry the weight the bag would hold, and we didn't even attempt that.

The shoulder strap can be cumbersome with a full sized keyboard but it works.

Ultimately, all three of the straps failed -- the shoulder strap and both of the handles.

Though the shoulder strap seems like a good idea, it may make the holder feel awkward about carrying the bag vertically as opposed to horizontally due to the massive size of the bag; it may seem a little less awkward if you use the shoulder strap on smaller keyboard, however

Finally, the shoulder strap failed again, basically ripping itself in half.

The shoulder strap can be cumbersome with a full sized keyboard but it works.

The shoulder strap was the first to fail, the metal D-rings bending under the weight of the keyboard and falling out, so I replaced them.

The only downside I have experienced with this bag are the D rings securing the shoulder strap.

On another site, the shoulder strap was criticized as not being able to carry the weight the bag would hold, and we didn't even attempt that.