It is 2 minutes from Tokyo station to Hachobori station by train. It is easy access from Narita and Haneda too.
The apartment is located in Chuo-ku and it is walking distance to Tsukiji Market. It is just 10 minutes walk.
Moreover, if you are up to Disneyland or Disneysea, you can take train from Hachobori station to Maihama station on JR Keiyo line, and it is only 12-14 minutes!
There are convenient stores and small super market around the apartment.