The iron works perfectly with shirts. Those who need a crease (bankers? consultants?) take their shirts to the dry cleaners anyway and don't have time to button the shirt onto the iron.

How could a hot-air ironing dummy create a crease?!
In my opinion, it does its job properly for casual shirts - when it comes down to it, either re-iron or iron by hand right at the beginning.
Important: don't swing the shirts at a high speed to avoid extra creases.