He gets 500 uniques a month which equates to around 17 a day or thereabouts and makes $1 day. I would say thats pretty good.
That´s very good. I own two websites. In total, I have 2900 visitors a month and I still earn 1$ average. I know it's not great, but it's also not bad if you consider that all my traffic is being send my other links, and nothing through SE. My niches are very populated, and the sites have 4 months old.
I think you might be violating the adsense TOS when you tell people to go to the "bar on the left"? I don't know maybe not. don't want you to get banned. good luck!