I haven't played metro this is my first time.
How is the gameplay?
Great graphics.
Great story.
Great atmosphere.
Good optimization (except for one DX11 setting)
Really really great weapon feeling.
A lot of weapons! All fun, too.
Fun Steam achievements.
Fun horror elements.
Half-Life 2 inspired pace for the campaign. It's a good thing.
2 endings.
Terrific UI.
7-15 hour campaign, depending on how much you explore.
Dynamic, intense action. Some exploration for good measure. Great shootouts. A varied range of scenarios and locations. As I said, Half-Life 2 inspired campaign.
Stealth elements.
Real-time in-game watch. Neat stuff.
I say it's a great game and it easily worth 10-15 dollars/euros.