It's the services of a rental property manager without the rental part.
With adults these days (me included) being more technically savvy but less... handy, it seems perfect.
1. Whatever broke wasn't covered by the warranty. For example on a fridge, the most common component to break is the compressor, and that's not covered by a home warranty because it costs just slightly less than the cost of a refrigerator to repair. 2. The warranty company gets to choose who fixes your problem and they choose the lowest bidder, which is almost always a person who doesn't have better work to do because they aren't very good. Every single time I've used a home warranty, I had to have someone come back and re-do the work because it was so shoddy.
YMMV, but I've heard similar stories from others who have used them. I now consider a home warranty to be a negative rather than a positive because I've had to pay another person to come in and fix something correctly that was done improperly by a home warranty repair person.