I received an offer from them, has anyone heard anything particularly good or bad from this agency?

An offer for what? I see on their front page they are advertising some type of "contest"--not a good sign. You know the drill--did they ask you for money? Push classes or a photographer on you?

They offered me representation, haven't asked for any money, classes, etc.
Also, which site did you find them on? I could only find local listings for them, no official site.

google them

If what you meant was the modelscouts.com page, that isn't them. I found their local listings and directory pictures of their actual New Mexico office, but no official site.

So far I've gotten a copy of the contract. It looks good, I just want to know if I'll get any work out of them.