I was skeptical but started watching it with my 2 1/2 year old son who loves it. I really love this show for the following reasons:
1) encourages kids to accept peers (and family members) that may be different from them, for example Buddy is not the same species as his brothers and sisters
2) does a great job of explaining new terms, such as "herbivore," and again expresses how animals can be different from each other (herbivore versus carnivore versus omnivore)
3) as the review says, it also teaches patience. All the adult dinos are patient, and they teach the kids to be that way, too.