I would agree with pretty good. I wanted it to be great / amazing, but so be it. I did enjoy how Prometheus connected with the other Alien movies and explains a few things.
I got a kick out of the geologist- "I like rocks. I love rocks. But it seems to me that all you care about are giant dead bodies. And I really don't have anything to contribute in the giant dead body arena!"
And yeah, those cave mappers are amazing. Let them go, have a cup of coffee while they work, and get treated to a full 3D map of the cave.
Letting the days go by / water flowing underground
Into the blue again / in the silent water
Under the rocks and stones / there is water underground.