GEOS Kudanshita has some excellent staff who will be very helpful with any problem their students have in daily life. It is also quite impressive how well they know their students. They do a very good job at making everyone feel welcome.
But that's not why you chose to go to a language school, is it? Of course your primary interest is in learning Japanese. Although they have some teachers who really know what they do, many seem to have absolutely no clue. One teacher I had thought it was a good idea to try and explain new concepts to complete beginner students, by drawing the words' kanji characters on the white board. You have the choice between going to a conversation focused class, or an intensive class. The conversation class is very much fun and play. Many times learning value of the game seem close to zero. In the intensive class the problem is that there is very little conversation. The teacher will do the talking most of the time. Of course this leads to poor development of your conversational skills. I actually improved my conversational skills a lot AFTER (!) I quit the school.
Then you have the obligatory kanji classes, two half days a week. The aim of these classes is to teach you to read and write all the 2000 most common kanjis, something even very few Japanese people are capable of... The kanji classes are divided into 10 levels. You can not enter a higher level kanji class unless you pass a certain test. Mind you, the kanji characters you have to master on the test are NOT the same kanji characters they teach you in class. Ie, if you only studied the kanjis you were taught in class, it is impossible to pass the test.
The person behind this and many other incomprehensible rules is the schools principal, Nagai sensei. Why he makes these meaningless rules, why he enforces them so strictly for some students and why he breaks the same rules for other students, I don't know. What I do know is that when all you want is to learn Japanese as quickly and efficiently as possible, and the principal of the school puts all these obstacles in your way, it can be very frustrating.
My five cents: If you are serious about your Japanese studies, look for another school.
