I think you misread the card. He provides a 2 credit discount per ice, so the first ice you rez with him saves you a credit and every ice after that saves you 2. That means that being able to rez just two ice with him makes him equivalent to a Beanstalk, except for the fact that the runner will most likely trash him at some point. So, Akitaro + 2 ice rezzed with him = 3 credits saved for the corp and 3 credits spent by the runner. That's much better than a Beanstalk.
The problem with him is that he saves money instead of making money. He's conditional. If you don't see him until the late game, he's pretty much useless. Also, to get the full benefit from him all the ice you rez with him needs to cost 2 or more. And finally, he's a core set singleton, so many players (myself included) only have two copies.
That said, I'm going to try him out today . I'll report back on whether he was useful or not.