Trust's apartment is located right in the middle between two JR Yamanote line stations, Ikebukuro and Otsuka. Because of this, you will be able to explore both stations' surrounding areas, which contain many different shops and restaurants. Ikebukuro is always crowded and I would say it is as busy as Shinjuku Station. So usually I prefer to go to and from Otsuka station instead.
Trust was helpful in answering our questions and provided timely responses. The apartment is larger than most other accommodations in Tokyo and it comfortably sleeps 2-3 people.