My sister (totally tech naive) got a new (1 model out of date, but 2 models newer than her old one) MacBook Pro after having 3-4 problems with it (all under war

My sister (totally tech naive) got a new (1 model out of date, but 2 models newer than her old one) MacBook Pro after having 3-4 problems with it (all under warranty) in her final 2 months of warranty and into her third year of ownership (I had made her get AppleCare). I've always been very happy with apple service