It would help if you’d have posted an example of reports for service and warranty.
It's been a while, so these may be out of date:
- https://blog.puls.com/top-appliance-brands-2020-guide
- https://cdn2.hubspot.net/hubfs/4039866/National%20Appliance%...
- https://blog.yaleappliance.com/is-consumer-reports-accurate-...
Also: please do your own homework, you should be able to find all this once pointed in the right direction.