This place is very conveniently located in a quiet residential area of Nishi-Shinjuku. There are lots of konbinis near by and it is close to the subway station, or only a 15-20 minute walk to Shinjuku.
I did notice a smell while I was in the apartment - not quite sure what it was, but it was reminiscent of must or mildew. I also noticed hair in the carpet and in the towels.
Overall, a decent value.