Overall I had a great time. The apartment was conveniently located (literally right next to higashi-shinjuku station). Although a bit small (which is to be expected), the place was clean and comfortable. It fit 3 of us with no problem. There are a bunch of great places to eat right around the apartment and the apartment manual that the host provided was extremely helpful in telling us how to get in, use the shower, washing machine, etc. The host was also very friendly and replied quickly to any questions we had. He even left us some souvenirs and snacks before we got there! I would definitely recommend staying here as you'll be staying in the heart of Tokyo as well as interacting with a very accommodating host!