We were a group of 6 people who stayed at Pencil house during our visit inTokyo. Tracey and Ash were very helpful and efficient in replying messages. They were very flexible with us when it comes to checking in and out of the house which made our trip much easier & hassle free. The Pencil house is at a good location and has everything you need. Its 15mins walk from Shinjuku station, 5 mins walk to metro station and convenient store. The floor heating system is great for cold winter, makes us enjoy hanging out by the living room. The only downside is 6 of us has to share one bathroom and toilet, but i think as long as your group don't mind and can arrange the shower time accordingly then it really wouldn't be an issue.