The question that comes into my mind straight away is where did he get the rounds from? If a bloke was selling his round then thats OK I can believe that.
But several rounds, that makes me suspicious. Its easy to get a good rating on ebay you just sell lots of small items cheaply. This guy has only got a small number of transactions. What did he sell to get them?
Also he is inviting any potential buyer to defraud ebay of its proper fee by selling a "business card". In other words the deal will be done off line, this is against ebays rules and they are always warning you not to do it.
Dodgy