Sorry about the delay. I lived in the west part of Tokyo for about a year and a half in a share house. At the time it costed 72000/m including utilities.
Okay. So with the current exchange rate that is $593.92 a month...which is very reasonable. But what is a share house? You had your own room (how big?) and shared the kitchen and bath or what?
Great advice. I think my biggest worry would be theft though...and 8 square meters is effing small for $600 a month. In the USA you can get a very nice sized apartment for that (depending on where you are, it is a big country). That is about 86 square feet and enough room for a twin bed and maybe a dresser (maybe fit a small desk and chair in there...if the dresser is small) without much walking room between them....which means no closet. The average studio apartment in the US is between 350-500 square feet (31-46 square meters). So I take it space is at a premium in Japan, which is no real secret.