ryse is not perfect as your idea of roman empire as it seem.
rome was never a peacefull democracy, having slaves, wars, even incestous relations were common. add plots and murders to this, rome was a dictatorship.
beside the game is only priced for 40 bucks, no one can say it's not gorgeous.
a graphic demo if you want but it deserve not such a bad note imo.
giving ryse a 5 and bayonetta 2 a 10 say a lot about the credibilty of gamespot reviews...