The AirBnb was impeccably clean and brand new, close to a 7/11, McDonald's, and Tully's Coffee Shop. The nearest station, Higashi-Shinjuku (Non-JR, 1 stop to JR Shinjuku) is convenient for those with luggages since it had an elevator. The AirBnb was also a few streets away from Kabukicho, Tokyo's red-light district, and Shinjuku's Golden Gai, great for travellers.
The bed was comfortable, and the room was exactly how it is in the pictures, all except for the unit's size. The pictures make it look much bigger than it actually is, and would be more comfortable for two adults with luggage, rather than 3. 3 adults is a bit of a stretch, as my two older parents and I had a hard time moving around the unit without bumping into each other, and had to have one our luggages outside the room. Construction works could be heard next door, and were a bit noisy in the morning. There also wasn't much space in the common area, without a table or any stools to sit and do some work on a laptop, or have a quick bite after a long day on foot, so the AirBnb might be better suited for travellers on-the go.
Despite this the host's replies were quick and helpful, and we had no problems with check-in. Will definitely think about these things the next-time we decide to book a place in Tokyo.