I think it sold in the 3-4 million range. Probably recouped their marketing budget at least.
I thought the gameplay was fun but it was sort of one note. For me, the cutscenes are what sold it. His constant yammering and the wierd grandpa is drunk flashes of text were very amusing to me and broke up the hours of shooting from cover very well.
Also on hard shoot dodge almost never worked because it took so long to get up if anyone was left alive they would nail you. I spent most of my time ducking behind cover and popping out for a slow mo headshot then snapping right back in. Especially later in the game.
Highlights - Slow mo hostage taker murder, melee range attacking for the first time, flavella chaos, that part in the airport where the song comes on