It was decent. It wasn't anywhere near Transformers the Movie (The animated movie that was more intense, had a better soundtrack, and told a better story), but it was decent in its own right.
I liked how Starscream seriously owned. However, I wonder if there will be some dumbasses to protest this, like they protested 300. Spoiler in Black:
Since Megatron seemed to be the only Decepticon that could speak English. That just screams anti-Immigrant, doesn't it?