Ok I've just read this novel. It was ... slightly feeble.
It didn't go the way I thought it would. I knew it was going to focus on the Covenant crew's preparations for launch, because I had read the blurb on the back cover of the book before buying it. And I also knew it was very unlikely to have aliens in it, because by the time the movie starts no one on the ship has seen any aliens. But actually it started off ok, with the prologue about the Prophet's dream, and dreaming about aliens seems a good way to involve them without actually involving them, if you get my drift.
So I was hoping it would become almost supernatural, in a way, with a guy dreaming about aliens that haven't even been created yet (according to the Prometheus/Covenant timeline).
No such luck. Instead we get an insipid story about kidnappings and gun attacks, all of which go wrong. It felt like it had been written by a 14 year old. Ah well.
An earlier poster here said that it would have been a better story if they had put the Prophet into a dream-reading machine, like David reading Shaw's dreams at the beginning of Prometheus, and I agree.
Right then. Moving onto the novelisation of the actual film now.