Yumi is a really kind and warm-hearted host. She gives us the best advice on traffic, restaurants, shopping and night view seeing. She even help us buy the tickets of supper in person!
Her apartment has the best location in Tokyo(5 mins to Shinjuku by subway). 7-11 and Railway station are just 2mins by walking . By following the guide from Yumi, you can get the apartment without problem. I feel like home when I stay in the apartment and I think this is the best description I could use.
You can choose this department without doubts.