Mingjuan was very kind and hospitable. The place is cute and comfortable. It's close to a lot of nightlife and restaurants, great location to explore Shinjuku. There are lots self-care products provided (though we had to buy our own dish soap) and a washing machine. When we arrived a half hour early Mingjuan was kind enough to let us check in a bit early, and also offered early luggage drop off.
We were traveling with our infant son, so we were a bit put off by the karaoke bar downstairs--although noise is prohibited after 11:30 in Shinjuku, as Mingjuan advised us, our infant isn't typically up that late. We are also non-smokers, and with our infant we felt uncomfortable with the strong smell of cigarette smoke which permeates in our apartment from the smoking area/ashtray which is (I think) about 15 feet from the door, overpowering the air freshener and filter. We left after one night to find other lodgings.
Others may not find these to be problems and may enjoy their stay here!