Hi AlbenoWilsono,
I studied in Hokkaido University for my doctorate and postdoc. I can say that the Uni is very friendly and great. I had been there for more than six years and it was so much fun to stay. I like the long winter. As a matter of fact, I wrote a book about my life as an international student there. Many friends use the book to know more about what their life will be if they study in Japan. You might be interested to know about it, "JAPAN Lights and Shadows". Visit this link:
JAPAN Lights and Shadows - By Gino C. Matibag M.D., PhD
Good luck to your studies!
Gino C. Matibag, MD PhD