That's amazing - tell him to stop buying lottery tickets, since he used up all his luck already :-)
Seriously, congratulations!
I use Time Machine in combination with CCC myself - TM is an 'oops I didn't mean to delete that' failsafe, and CCC is my catestrophic failure recovery option. Last fall I lost 8 HD's in two machines within 2 months. After the first two, I added a second CCC backup with a daily clone that runs automatically at night - it saved my bacon when the next 6 went out.
BTW - if you have any SSD users, those tend to die all at once, without warning. It's a very different failure mode from spinning disks.