pictures? any markings on the blades? What is the geometry of the blades (right off the bat, if they're hollow ground they're crap)? Are the hamons real or cosmetic? How thick are the blades (many wall-hangers are made from 1/8"-3/16" stock)?
Without any better information to go on, I'm going to tentatively assume they're crap (since most are, and these were free). Give us some more information and people here can tell you for certain whether they're crap or not.
- Chris
p.s. I'm trying to be as nice as I can here, but please look at your post again and ask yourself whether there's enough information there for anyone to answer your question.
For perspective: I was given a set of 6 or 7 different cars. They all look like cars. They're different colors. Are they worth anything?