As far as websites go, it's great. And, he seems like a great person. But, if he's genuinely asking you for your opinion, give it to him. I mean, the idea of choosing a reputable breeder and then turning around and breeding "crosses" is contradictory. That isn't reputable breeding at all. I would try to be as tactful as possible. Ask him his thoughts on it. It might end up being a very englightening conversation. You never know til you try.