Yes, I've already read through that site. I know better than to take the experiences and reactions of one person, in a specific work environment (and not a nice one at that) to apply to the whole country.
It's a good page to glean tips and things to look out for, but it's also the guy's dumping yard for all the weird and painful experiences he went through as a newb in Japan. He doesn't really mention anything positive, or bother to explain why he stays in the country, because he's sardonic and cynical that way.