As others have said, the animation is amazing thanks to its huge Hollywood budget. It is very easy and enjoyable to watch. It is kind of like a mature attempt at an animated family film, as it uses a lot of tropes and conventions of the old Hollywood western movies and transplants them to an animated family film. There are explicit references to Clint Eastwood, the good the bad the ugly, and also other classics such as Chinatown etc for the adults to appreciate. I think, however, that it focussed too much on trying to be clever and appreciated by grown up by adult critics. It is no surprise that this won an Oscar. However, its target audience should be children and families and it is a bit flat and clever for the kids to really get into. It doesn't have the heart and the innocence required for children to really love it. So winning an Oscar says nothing about how successful it was to the majority of people that actually watched it. Those that aren't Academy critics, but children and families.