Apartment was exactly as expected, in excellent location near Shinjuku station and the metro line, and perfect for exploring Shinjuku at night. A little bit cramped but perfect for 2 people as a base for exploring the city. Check in was easy, the staff were very friendly and even offered to clean our room half way through the stay which was very appreciated.
We only heard a little noise from the construction during the day but we were normally out so not a problem at all. Shower could be a little in consistent at times with hot water but generally the hot water would come back within a few minutes. Would definitely recommend and stay again.