As villain games go, Kane and Lynch isn't bad. It's an interesting idea, and works well for what it is - you play a mercenary freed from death row, trying to reach and protect your wife and daughter at any costs. It's an over-the-shoulder game in much the same way as Gears of War is, and makes use of the cover system in the same way - but nowhere near as well. There's no button to press to take cover, for example.
The health system works in the same way as Turok, using darkening and blurring screen to indicate worsening health. It's not clear, but you regenerate quickly, so it's rarely a sticking point. The guns are nice - a good selection of sniper rifles, automatics, handguns and grenade launchers. I found the grenade launchers poor, compared to the rifles, but it's a minor complaint.
There are some great touches, like the ability to rappel down buildings, and taking on an enormous truck at one stage. The rocket launcher is single use, like Crysis, but nowhere near as satisfying - you just don't really know if it's connected with a vehicle or not.
The levels are varied, from the jungles of Cuba, to a prison break, to a Tokyo club. It's fairly simple, but tries to make use of squad commands, which doesn't really work out that well - although your team-mates are quite healthy, they aren't that great shooters, and I did most of the game without them.
As with most villain games, the ending is disappointing, to say the least. There's nothing really wrong with the game, but it simply feels unpolished, relatively quick (it's four days gaming if you play a fair bit) and unsatisfying. Not a game you'll be coming back to for more, and compared to Gears, which it seems to set itself up against, it just can't compete. Not bad for a few pounds, but it's not a keeper.