We stayed at Eiko's for two nights, 4 adults 1 baby. The small touches that were put in made this place very comfortable, from the toys for kids to the room safe.
It was very comfy , clean and larger than the images suggest which is a surprise. The location is 1 subway station from ikebukero but one there a very short walk from the station. It's in a very quiet family neighbourhood.
The only downside is that there is a tight staircase you need to climb to get to the second level. It wasn't easy lifting the luggage and pram up it since it was so small.
We would stay again here.