It's not as good as Halo or Half Life, but any FPS or stealth game lover shouldn't pass this up.
This game allows you to play it just about any way you want. You want to be super-strong and be able to run really fast? Fine. You want to be stealthy and use such abilities as Neural Interface and Bot Domination? Again, fine. You want to be something in between? Once again, fine.
Of course, good gameplay needs to have a good storyline. Luckily, Deus Ex: Invisible War delivers in this aspect too. Having played the first Deus Ex, I can tell you that if you liked the original, you'll like this one.
This game isn't just gameplay and story, though. It has some pretty good graphics to go along with it. There are a few problems with the graphics, however. Personally, I found that the character models didn't look natural enough. Still, this is, at best, a minor problem.
The game's sound shouldn't be ignored either, though, because it really helps to increase the feeling of a Sci-Fi world.
To be honost, I recommend you buy this game, considering how cheap it is. However, if you don't buy it, at least rent it, because it really is worth the time.