The apartment is as pictured, and the location is one of the most convenient we've ever had while staying in Tokyo. Walking distance to at least three different train lines which will take you quickly to most of the main attractions in Tokyo, and also direct access to Narita via the Asakusa line which is very convenient.
Although the apartment is small, it is typical of Tokyo apartments and was very clean and modern. Check-in was easy as long as you make sure to read the instructions sent to you thoroughly. Pro tip: print out a copy of the check-in guide and anything else that you are sent (especially the WiFi password)!
The only down side I would say about Itoe's place is that there aren't as many amenities as other Airbnb's we've stayed at. There are towels, toothbrushes, disposable razors, and a hairdryer, but there were no guidebooks, maps, or suggestions for local attractions - this wasn't a big deal for us as we are very familiar with Tokyo, but for first time travelers it might be a bit inconvenient. Also unlike a lot of other listings in Tokyo, there is no pocket WiFi (although the WiFi in the apartment is excellent and very fast).
Communication with her was very easy and she was always very quick to respond. Even when we had a problem with the AC, it was quickly resolved. Overall, I would definitely stay at Itoe's place again.