Answer the question about text:

I wanted to take a moment to comment on the service and support provided by Hear Technologies for my Hear System . After two solid years of daily operation an issue developed with the PSU module in the Hear Hub . Max shipped a new supply next day with return shipping for the old supply , with clear directions how to swap out the supply . The job took ten miutes .

Why did it only take ten minutes to install the new power supply ?
The directions made it very simple