It's longer than both of the other DLC for Fallout 3. I'm not too fond of the new perks but it is great getting all the ones I missed up to 20 and maxing out my stats. There is one perk that allows you to level all your S.P.E.C.I.A.L. Stats to 9 instantly. There are 3 new missions and they are all fun. Except getting blasted to hell by lasers on the last one.
I hear they are coming out with a Shivering Isles type expansion for Fallout in the future called New Vegas. I can't wait to see how that is going to turn out.
[Edited by Zackman, 5/7/2009 8:29:37 PM]
New Vegas will not be en expansion for Fallout 3 but a stand alone game.
Broken Steel is a great DLC except for poor new armors/weapons and for a lot of people achievements are not properly synched yet with the server so even if you get them they do not appear on your live account.