I just tried to generate one and then got impatient for a second and restarted, the second one didn't finish generating so i am here. I generated one before and it went fine because it went right into the map starting it all by itself.
a video built into the generator showing the steps would make it impossible to do anything but think it is froze and instead of not generating. It just has to show the step of set up and then the little parts and sinking the video once it starts but after a viewing so that when it says (doing this part) it will show in the now replaying video. this will ensure people of the thing is running and help catch crashes when it doesn't. then a size timer could be made with your pc system stats listed as the probable times involved would also help but begging for optimization would occur. i know it get impatient so I am just saying it. anyways please consider this idea.