I enjoyed my stay at Numa's place very much. It's well located for Shibuya, Harajuku and Shinjuku, but the Yamanote line which is about 8-min walk away takes you to many great places and has good connections.
You can cook and wash clothes in the place and there are a number of combini and restaurants around.
Everything is clean and relatively new!
Numa was very friendly and helpful and always responded quickly!
I felt very welcome!