The pros: This apartment is in a great area, just a few minutes' walk to Ebisu station as well as all the shops and restaurants in Yebisu Garden Place. It's also easy to get almost anywhere in Tokyo since you have access to both the JR Yamanote line and the Hibiya subway line from Ebisu station. It's also very nice having a washer in the apartment so you can do laundry whenever you want.
The cons: It's pretty difficult to find and access this apartment, even with the photo guide from the host. It's down a very narrow alley and you have to walk up several sets of uneven steep stone steps to get to the building itself. Then, once you get to the apartment, it's split into two levels with more steep steps inside the apartment. I also had a lot of difficulty with the check-in process. There's a tablet where you're supposed to enter a code, but it was very unresponsive and took many tries, and then it turned out the code I was sent was incorrect, so I had to call and speak with someone who gave me a code to access the apartment directly. It would have been much easier if they had just given me the code to the door to begin with! While the interior is mostly new, the apartment felt a bit damp and musty, so overall it wasn't the most pleasant place to stay.