Great communication with Naoki from the start.
The direction instruction to the property is spot-on.
I reached takadanobaba station almost midnight and I can follow the direction instruction without problem. It's about 5-10 minutes walking distance...depending on your pace. There are plenty of restaurants, cafes, and mini markets along the way from Takadanobaba station to the apartement.
Takadanobaba is a great location, near the famous Waseda university, few stops away from Ueno, Harajuku, Shibuya, Omotesando, shinjuku. Easy access from Haneda through Shinagawa or Narita through Nipori.
There are two 7/11 mini markets from the Takadanobaba station to the apartement where you can withdraw Japanese yen money from your overseas account using your approved bank card through their ATM machine.
The apartement is new, modern, clean. I travelled alone, there should be plenty of space for two people. However, there is no door for the bathroom and toilet, so be mindful if you travelling with someone else.
I will stay again at this place in the future.