This game is more fun than Bioshock, and deserves a higher score.
Think of this game as Rainbow six meets Silent hill, the team mechanics work well in my opinion and add depth to the game, each character is balanced and you should be able to find something about each one that you like, wether it be a weapon or special ability they all contribute to the team in their own way and I found it fun to try different tactics with them.
The graphics are very well done, creepy atmosphere, and characters that fit well into Clive Barkers warped hellish world. Some may say it's to dark or drab, well I guess hell isn't all rainbows and care bears.
The sound and music are also suited well to the action as is the sometimes humerous voice acting, it's all does a fine job and I can't complain about it.
To sum up, this game is fun, when you see your team mates taking on wave after wave of hellish creatures, guns blazin, blood flying, IT'S FUN. There are games with more content such as Halo 3, there are games with more polished story lines such as Bioshock, but guess what I don't care as I'm enjoying this game just as much as those other so called great games. I'm enjoying it more than Bioshock so make of that what you will.
If you think you may like this game after playing the demo then by all means give it a try, for some reason it's been singled out to get a kicking from so called proffesional reviewers. Forget them and enjoy Jericho for what it is, it's not perfect, but it is a over the top, fun, team based horror FPS that many gamers will enjoy.