It was a pleasant stay, the place was clean and nice to live in.
When I couldn't find the room key at first, Erika quickly responded to my messages and it made the check-in really smooth. Much appreciated.
The apartment is also located in a very convenient location, close to Shinjuku Station(about 8-10mins walk).
It is also super close to my favourite tsukemen shop (龍の家) → I highly recommend as it is one of the best tsukemen I've ever had.