Kimmy and Dees place is just fantastic! Location is great, just a short 5-10 minute walk to the Asagaya Rail station. Incredibly easy to get around. The location is surrounded by tons of small bars/izakaya, restaurants, coffee, convenience markets, and anything else you could need. I was on a work trip for a few weeks and stayed in Shinjuku-Ku area. On my last few days, I needed to leave and I was so glad I did. I stayed pretty much in the neighborhood except to go meet up with new friends for drinks at night.
The apartment had everything I needed for a comfortable place to end the day. Really easy to find and check in; the notes Kimmy and Dee provide are excellent.