I had a few serious problems with the apartment. First of all, this apartment is NOT close to Shinjuku at all even though the title of the post says "Akihabara, Shinjuku are close!" as you can see. I had meetings in Shinjuku every morning and I rented this apartment believing that it is close to Shinjuku, as it should be according to the post.
As you know, you do not get the exact location of the house until you make a reservation. After I made the reservation, I received the exact location and I found out that it was nearly 40-50 minutes to Shinjuku in total according to the Google Maps. So I sent a message to the host and told her that there must be something wrong and she told me that the apartment is 15 mins away so I thought she must know a different way, which is not shown on Google Maps. After I arrived in Tokyo, I checked in the apartment and texted the host again asking for the route to Shinjuku which takes 15 mins. Then, she sent me a route from the nearest station to Shinjuku station which takes 30 minutes and the nearest station to the apartment is 12-15 minutes walk away!!! So it took nearly 45-50 minutes to arrive in Shinjuku.
Secondly, there were marks on the bed and mattress. Also, the bathroom curtain was very moldy. I tried hard to prevent the curtain from touching my body while taking a shower. So the place is not clean.
I visit Tokyo a lot and I would not stay at this apartment ever again.