We stayed at Manamis place for nearly one week. The place is really close to Koenji Station and easy to find. There are a few convenience stores on the way to the station, so everything you need is not far away. And even tho there was a building site near by, we didn't heard a thing of it. The only thing we heard at night was the person living above. Manami was really friendly and answered on messages really fast. She also brought us two extra blankets as it got colder. We would definitely come back to her place and had an amazing time there. Recommended!