This series is really tough to beat for its fantastic special effects. The dinosaurs look gorgeous, and the producers went to great lengths to find appropriate filming locations that portray environments very similar to those in the Triassic, Jurassic, and Cretaceous. The episodes are interesting to watch, and feature a wide range of different dinosaurs. All of the "classic" dinosaurs are included in this series, with a few extra thrown in for variety. This series is a treat for adults and children, so I only have a few complaints:
1- The episodes are short: 30 minutes or so each. That makes it easy to go through the six episodes in a short period of time.
2- The bonus disc is a "making of" disc. It was interesting, but I would have really appreciated extra information about the dinosaurs themselves from the paleontologists. That would have substantially boosted the instructional value of these discs.
3- Lastly, some of the scenarios are a bit contrived, and as often happens with dinosaurs, the animals sometimes behave too much like mammals. Reptiles have much smaller brains. Dinosaurs were (for the most part) just a step above ants in their intelligence (look at the brain/body ratio of sauropods). Less anthropomorphizing would have been nice.
But, that's a problem with 90% of all nature shows, so I can't complain too much. Overall, it's a fun series that balances entertainment with some facts quite well.