Chieko is a wonderful host--she is very responsive and does all she can to help you out. I needed help with finding a place to rent pocket wifi for a few days that could be returned at the airport and Chieko handed me a list of places to go and whether it was inexpensive or not! She also picked us up at the station the day of check-in and walked me to the bus stop on the day of check-out.
The place itself fits two people comfortably. It is a bit far from the city so taking transit is always a must. However, it is a quick walk from the station and it only takes about 30mins to get to places like Ueno and Akihabara so it isn't too out of the way at all. One thing to note is that the room is street level so when cars or trucks pass by, it is rather loud. Fortunately, it isn't a main road and therefore, it wasn't a huge problem for my sister and I. If you aren't a light sleeper, it shouldn't be a problem.
It is super easy to get to Haneda airport as well! The bus that takes you to Haneda is a charter bus with storage, separated by terminal, where the driver will put your luggage. So if you were like us and have a lot to bring home by the end of your trip, then Chieko's place will be perfect for you. Overall, we had a comfortable stay for a great price and I would recommend staying at Chieko's place!