Glenn Hughes and Joe Lynn Turner are both old boys of rock and it shows that these two knows good hard rock. This album is probably the best one in years in this genre. It's melodic but not cheesy, hard but not painful. The concept might be odd to some people since both Hughes and Turner are singers, but it works out more than fine.
I had my doubts before this release since Hughes in my opinion had gone musically astray, and Turner hadn't done anything excellent in years apart from his two cover albums. But I was wrong, this album is great. It reminds a bit of the Rainbow era when Turner was their singer (compare "Devil's road" with Rainbow's "Death alley driver" for example, and "Mystery of the heart" with "Stone cold" and "Street of dreams").
If you like melodic hard rock of high quality you should get this album - I can garantee you won't be disappointed!