Good size apartment for Tokyo! In my experience it's also quite unique for an apartment in Tokyo to have full size desk. That made it much more convenient to work. I was traveling solo but there's plenty of space for two. There's also a large closet that's convenient for longer stays.
I also really enjoyed the location, it's only 10 minutes walk to west Shinjuku, and 15 to the vibrant Okubo Korea-town. Overall there's easy access to Chuo JR, Yamamote JR lines, Seibu-Shinjuku train, and Marunouchi and Oedo subways, all within 10-15 minutes walk. Or you can just walk to Shinjuku station, just a bit further!
The kitchen is especially well stocked for an Airbnb, there is sugar, salt & pepper, cooking oils, rice, stock, tea... And plenty of cooking utensils. There's also a full size washer/dryer unit which is also a rarity in Tokyo!
The host is always quick to reply and goes the extra mile by taking time to welcome guests in person. Thank you!