The Bureau is a decent game, but outside of the aesthetic has little in common with it's X-Com namesake. This is a fairly generic cover based 3rd person shooter, think of a mix between Mass Effect and Gears of War and you're on the right track. The story is so-so, but the main character is an unlikable fellow so it's hard to form any sort of attachment. It took around 6-8 hours for me to run through the storyline, but completionists could probably squeeze out another 3 hours or so doing side missions, etc.
I'll be honest and say that I DID NOT beat this game. BUT I played for a good 3 or 4 hours which was equivalent to a number of missions and was far enough into the game to see no more cool stuff was coming my way (except new weapons/upgrades). If you have played Mass Effect avoid this game at all costs! This game is set up to be a first person RPG like Mass Effect but unlike Mass Effect it doesn't work. Weapons were pretty lame, character dialogue/acting was poor, and graphics are sub par. Your character has 2 speeds: walk or jog. Walking takes forever and the jogging takes a few seconds to kick in and even then you aren't moving much faster. To make things worse when you are jogging the camera controls are a little different so I found myself running into walls often. You roll with 2 AI people in your party and they are STUPID!! They constantly get in the way and any time I tried to sneak somewhere to get better cover I turn around to see my AI "ally" standing out in the open and seconds later the aliens are alerted and start shooting at me. And anytime you see a grenade thrown at you expect you allies to get hit because they always do. I even watched one escape the blast radius just to run back into the radius at the last second to get killed. Plot was interesting and I wish I could have seen how things ended but with incompetent allies and the rising difficulty of the enemy AI I could see myself getting frustrated and hating life if I kept going. If you haven't played Mass Effect I say you give this a shot and if there is anything you like about the game, go and get Mass Effect and experience what this game could have been like.