The apartment is really nice. It looks like the pictures. We travelled for a long time in Japan and this apartment is actually compared to others quite big and good for 2people!
Check-in was super easy and the room was clean.
Its also 10min max from Shinjuku centre which is very nice and convenient.
The apartment is on the basement floor, so bring earplugs with you if you are sensibel. But it wasnt very noisy. The only thing what disturbed us was, that there were no curtains for the small window - so we didnt have a dark enough room to sleep for my taste. But thats just a small thing...
And for your information. To take a hot shower you have to turn on the heater - which is in the kitchen. 40degrees is perfect ;-) otherwise U will take a cold shower - like me on the first day...
We really enjoyed our stay here! :-)