First, I want to say that overall The Cosmos Rocks by Queen + Paul Rodgers is sonically a first class album or to be more accurate in this case, CD. The musicianship and vocals are top notch as well with a mix of thumping rock and power ballads that take you back to the late 70s.
Paul Rodgers, also known as The Voice, throws his vocal weight around and makes the band his own, perhaps to much his own. After listening to the 
album I didn’t have a song from the CD stuck in my head, I had a Bad Company song humming away from the depths of my brain. Pull out your old t-shirt with the picture of a wolf on it when listening, it should heighten the time travel aspect of this CD.
Cosmos Rocks didn’t grab me, not a single track stood, it felt like three masters of their art getting together and playing songs they left off of previous albums. The album is good enough to merit a listen but I would be surprised if this gets past a second play or even has a song slip into a playlist on my iPod.
For some, the amazing capabilities of the musicians alone will warrant owning this disc but for the casual listener, pull out your old Queen or Bad Company albums and give them another play.