Not great, only worth playing if you are an achievement junkie
Once you've played the first level, you've played the game really. It is all the same. Point and shoot, use "Tequilla", kill boss and done. That is each level to a tee. Gun's are not that powerful, but they do the job anyway (eventually)
Graphically, i've seen better and played better. Controls are a bit clumsy. Only working part is the slow mo, and the sliding really. Enemies die with no passion. The character movements aren't smooth, you can see the jumps occuring all the time. Which is probably one of the reasons i was unwell afterwards.
If you are a John Woo fan, then you'll love this. If you are a shooter fan, then i would recommend something else. If you are an achievement junkie, then come on board because you'll play anything.
To be fair, i'd recommend playing something with more "smoothness" to it.