I have really mixed feelings about this episode.

I liked the whole 'origin of earth's mythological creatures' explanation, I loved Bumblebee and Smokescreen's well thought out fight scene. I loved some of the dialogue; any mention of Beast Wars gets me excited

But the issues that really stood out without reading the comments above were:

-Predacons dying of natural causes? I felt there should've been some sort of explanation here.
-Tug of war with Shockwave.... REALLY?! Lame ending to an action-packed fight scene.
-Why can't they use Predaking's DNA to make more Predakings instead of finding more fossils?
-I hope this season doesn't turn into another "bots must split up and prevent the cons from finding something that's scattered all over the earth" scenario.