Depending on your expectations, I found having the ECP from Toyota got me better service. They got me a rental car when they couldn't repair a warranty issue within the day (steering failure) which they said they wouldn't have done if I didn't have ECP. I also needed a tow which was covered, and the road side assistance was nice when I was in the middle of nowhere. I think parts wise, it didn't pay for itself but the extra service sort of made up for it. But, by the time I actually had something that needed repairing which cost more than ~1k$, I was already out of that extra warranty.

So - would I do it again? Not sure. It's nice peace of mind for the family and not wasting time arguing over repairs / on the other hand a mechanic family friend retired and he's mostly working out of his own garage so I'm more inclined to go to him now.