Be aware that this guy scammed me for one CoD4 CD-Key. The key was legit and working tested on 4 PC's and he ended up insisting that it gave him "Key Code in Use" and didn't sent me the money.
His steams are probably phished/stolen, so be prepared if you have bought from him to have the steams reclaimed from the original owners and you ending up without your money.
In the end he even tried to have me vouch this thread and his username here on sythe.
Also his only vouch is from a 3 post guy that registered last month. Be very careful when dealing with him. He is a scammer.