It's kind of hard to describe Blood For Blood. It seems like you've either heard them already, or you haven't. Maybe because they're from Boston and I'm an east coast kid, it's easy to say that they're popular- in the sense that most everyone has heard them. So, let me say two things about Blood For Blood.
First off, a lot of bands that I know- that I've done interviews with, and that I've read interviews of- site Blood For Blood as being one of their biggest influences. Now, if musicians don't have good taste in music, then I don't know who does. If the bands you listen to and like, don't like good music as well, then God help us all. So, take it from what the bands say, because they are much cooler than me-- BLOOD FOR BLOOD IS GOOD.
My second point is merely this. If you have heard of Blood For Blood, you will enjoy this CD. There are 25 songs in total- ten of which are live- so you will enjoy this CD if you are already a BFB fan, I guarentee you that. If you have not heard Blood For Blood before it's real simple- pick up this CD, and you will get into them. Not only do you get the "studio" recordings, you also get some live shit. Once you listen to this CD, you'll be hooked on Blood For Blood.