This place is great. Has everything you need for a stay in Tokyo. There are some izakayas near by and taking a taxi to shinjuku station when leaving is very convenient (about 1100-1400 yen). The marunouchi line is a little odd, however. You will need to switch at the nakano sakauae station to get anywhere.
Other than that, the area is quiet. This is a good space for three people. It's really nice they also have a washing machine and balcony. Would stay here again.