We spent more than $1000 on tires for a Nissan Armada, and we bought the lifetime warranty, thinking we would not have to keep paying to replace the tires.
The service is usually good, they get you in right away. However, sometimes you wait in line for 20 minutes because it's crowded on weekends.
My husband got a hole in the tire, and ended up paying $42. The $25 warranty on the tire means that if you need the tire repaired, you have to ALSO REBUY the warranty on the replacement tire. I am sorry, but that is NOT good service. Granted, it beats paying $250 for a tire, but I think repurchasing a warranty on a replacement tire is completely RIDICULOUS.
Otherwise, service ok, but this warranty isn't a full warranty that you would think it is. Also, ordering a new tire can take 2 weeks like it did with us, that's how long we had to drive on the spare!